The Dreaded Cadillac ATS Shudder - Can It Be Fixed?

There are few things more frustrating than diagnosing drivetrain shudder. I've talked to fellow ATS owners. Some have learned to live with it. Some have traded in their cars and bought something else. But I want to keep my ATS and I want it to feel like it did when I bought it. Smooth. Solid. Quick. Springfield Cadillac in Springfield, VT has taken on the challenge to fix it. After having the car for almost 4 weeks, this is the result.
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[@twoweelr]

Hey Buddy. Bought the same car a month ago. With 21000 miles. This guy fed you a pile of.... when he said he wants you to he happy. I have the same issue. I changed the engine oil to pensoil full synthetic and put full synthetic in the tranny. Also changed to 94 contain. Problem went away. I'm a retired 30 year gm worker. This is a problem with this drive train. It was rushed into production to meet cafe ratings. It is more than the transmission. When you have a 4 cylinder in 8th gear running at 1500 rpm pulling a 3000 lb weight you will get shudder. The tranny is programmed to allow the turbo to make up the power loss when you step on the gas, instead of a down shift. This keeps the rpms low. The turbo has a lag of 2 seconds causing a shudder to occur. Similar to running the wrong gear with a manual transmission. The real issue is that without doing what I did, you will eventually have an issue of a cracked transfer case from the vibration. The 4 cylinder engine is a poor powertrain option for this vehicle. The turbo is a single volute and causes excessive cross feed on the intake. Try driving in manual mode with higher rpms between shifts and the problem disappears. You need to keep the rpms up with a turbo. The programming on this drivetrain is designed to keep the rpms low. It is a great performer at 85 plus mph...lol

[@sstressfl]

BTW, my car has the 6l45 not the 8. GM has documented the 8-speed problem and is publicly arguing in court that the 8 speed has a design flaw that causes build up of metal shavings due to poor oiling that causes the shudder. GM said that changing the fluid is a temp fix. The shudder will return. In regards to the 6l45, I changed my own fluid and I could see at 40,000 miles it was completely saturated with metal and clutch material. The filter was compromised and I'm sure low line pressure was causing messed up slow up shift and down shift response. It shifted SO much better, smoother, quieter, almost zero shudder when I changed it so I knew the contaminated fluid and filter was the probelm. I'm further down the road from this video, but eventually I asked them to look at the shudder. They did... and later I was told by one of the mechanics that they flushed the transmission. They didnt document it, but it did fix the transmission shudder. But even now, when this thing is cold its smooth smooth smooth at all speeds. But when driven frequently it gets worse. Something is getting hot and causing problems. I have to think it has to do with tire/old fluid. I plan to change the front diff and the transfer case fluid very soon. Hopefully that simple solution finds the fix.

[@dukkiboi]

I have a 2016 Ats 2.0T…should I always use synthetic engine and transmission oil? Also my check engine light is on and I’ve changed both intake valves in the front, new ecm, new coils and plugs…still messes up when I press the gas too hard or when I’m climbing a bridge

[@junior281991]

I completely agree with David. I’ve been a mechanic for 10 years and engines dont like running that low. No matter what they say about the latest and greatest technology, engines dont like running that low. But they so it to meet higher and stricter MPG standards. They make the turbo make up power instead of downshifting the transmission. Lower RPM higher MPG.

[@jeremyhargett5366]

What do you mean by "also changed to 94 contain."

[@pxgodx]

Interesting as I took it to the dealership cause I was having the “shrudder” issue and they said a tranny flush with the new GM recommended oil will fix it. I drove to a freeway right after I got the car back and it was still the same. When I put it M and leave it in 7th going 50~60 the problem isn’t there. I only go to 8th when I’m going 70~75.

[@chadsmithwick6241]

I have a 2012 Cadillac CTS 4. It started to make a hum noise over a year ago and turned into a small shudder about 4 months ago. Yesterday it finally thumped on the floor right up under me. I was so happy😂 fixed my nephew's 2013 ats 4 3 Years ago. Rear drive shaft took a crap on him. Got under there today dropped the exhaust from the back removed the heat shield and sure enough the bearing on the rear drive shaft also 3 of the 6 bolts missing that link it to the transfer case!😅 luckily I had some left over from the ATS job.👍🏼 Pick N Pull here I come!

[@MS-es9hm]

great video and glad you are happy i had trouble in the 90's with a similar type vehicle but local dealership didnt care and just kept replacing parts under warranty when i approached the dealer owner he shrugged his shoulders and didnt care that in a year it spent 11 months there getting fixed i literally replaced the whole drivetrain and on a longer business trip ended up trading it in for a different brand. im glad your dealer worked so hard to solve the problems and keep you happy. Merry Christmas!

[@sstressfl]

That has been my experience in other places with different makes. These guys went the extra mile 👍 a rare gem! Merry Christmas 🙏❤️

[@_cadillacmiketyping...2533]

Lol 90s car similar to the ats? What vehicle are you referring to?

[@jonnieves7654]

Michael, I have a 2012 Buick LaCrosse 3.6L with the 6T70 transmission. I too have had issues with the "shuddering". It happens when you are driving around 45mph cruising speed all the way up to even 70mph in cruise control. After doing a ton of work on the car, I lastly did the Hubs & Bearings, front & rear. The shuddering calmed down 80%. Now, the only time I feel it is after the car is warmed up [1hr. or 60 miles of driving to work one way] and when the cars RPMs drop down 100-200 while going up a hill on the road, especially on cruise control. After everything I did, I am thinking that the shifting solenoid and/or speed sensor[s] is going bad because it is that selenoid/sensor[s] that tells the transmission when to up or downshift. When going up a hill on the road is the only time I feel it. And not always. Very detailed. Keep 'em coming mate.

[@sstressfl]

Yes that’s what mine did!! Everything that increases resistance increases shudder. Dragging brakes. Bad wheel alignment. Extra weight. And definitely when it gets really warmed up it gets worse. They kept my car for 4 weeks. When I got it back it no longer shuddered. The mechanic said he tightened stuff up but claimed he didn’t do anything else. I wish I could share more detail. I have a friend who had to replace his torque converter. That fixed it for him. Mine is still smooth as silk. Have you changed the fluid and filter yet? That improved mine tremendously.

[@jonnieves7654]

@@sstressfl yes. I flushed my transmission fluid also. I did suspension, rotors, brakes, shocks, struts, etc.

[@jonnieves7654]

Haven’t done the transmission filter yet though.

[@sstressfl]

@@jonnieves7654 wow! Let me know if you find the final culprit 👍 it’s ultimately annoying. Motor mounts?? Transmission cross member bushing?

[@sstressfl]

@@jonnieves7654 that’s a good one to get done! Mine was saturated with metal shavings. Clogged. A new one will help restore proper fluid pressure thru the system. I feel for ya man. It’s really tiresome to deal with. Praying you get it resolved.

[@vociferon-heraldofthewinte7763]

I have a 15 ATS 4 2.0T. I had a low speed noise and slight shudder that was cured with new non-run-flat tires.

[@sstressfl]

I have non run flats. Smooooth. But this specific shudder was the trans. I later found out they did a flush. It seemed to have fixed the issue!

[@vociferon-heraldofthewinte7763]

@@sstressfl 👍

[@SevenFortyOne]

I've never heard of a dealership doing so much to keep its customers happy. I live about 3 hours away in CT but would consider driving up there to buy a car from them.

[@sstressfl]

I don’t blame you! I have purchased two cars from them and they made it easy. I’m a fan!

[@tintocherian7715]

@@sstressfl which Cadillac do you own other than the ATS? You mentioned something about getting the ATS from a Ford deal I believe

[@sstressfl]

@@tintocherian7715 I bout a new 2004 Pontiac Vibe and a used 2009 Pontiac Vibe from Springfield, years ago :) The ATS is the first Caddy I've owned. I was shopping for a replacement for my 2007 Ford Edge, looking for a car with AWD, a turbo 4 would be nice.. and I stumbled on the ATS for sale at a local Ford dealer. I didn't even know Cadillac made an AWD! I drove it. Had to have it.

[@SevenFortyOne]

@@sstressfl I still have my 2007 pontiac vibe. It's a great car...it just won't die.

[@sstressfl]

@@SevenFortyOne awesome car 👍 I wish I kept mine!

[@Mac_Ridgewood]

Just purchased a 2016 Cadillac ATS 4cylinder turbo a week ago from A Cadillac dealer and it does the shudder after getting warmed up- taking it in on the 15th - luckily i have the Bravo 6 month / 6k mile warranty-

[@sstressfl]

You have the 8 speed automatic… it is known to need a flush every 30k miles or so to keep it from shuddering. Take care of it and it should be fine 👍😎 Enjoy your gorgeous car 🙌

[@Mac_Ridgewood]

@@sstressfl good to know

[@v8powa466]

I know that when the tranmission is not filled to the correct level, there will be a shudder. When filling the transmission with oil, there is a correct procedure. You have to get the car to operating temperature driving it around and then having it running when it's raised off the ground and level, and the fluid level needs to be checked at that point.

[@sstressfl]

@@v8powa466 This is true. But this is not the case with the ATS. Class action lawsuit against GM because of the shudder with the 8 speed.

[@v8powa466]

@@sstressfl I see. On my '13 2.0T model, it has the 6 speed and I change the transmission oil myself and I know it what I said is true for the ATS

[@djmatropolis1]

I’m still amazed at the quality of your Cadillac dealership. He actually went for a ride with you. I’ve asked for that so many times and the answer is no. But I do feel that GM knows there are issues with the car. I just think they don’t know what to do with the powertrain on the ATS. But the wording they used with you is pretty standard stuff. I wish I would have recorded all my interactions. Thanks for sharing.

[@sstressfl]

I agree. An amazing dealership! I do think there are things not being said. They have their reasons but that belongs to them. Personally I think Mark is the real deal and is effective at balancing the reality of corporate GM, dealership management, shop structures, profit and loss... etc etc. what a tough job! Yet he is a true car guy. A true GM fan and he knows his stuff. I like him. He set my expectations. That’s why I took the car home. And I’m happy. And the only reason I recorded it was because I have a KZbin channel and that’s what I do and they let me! Pretty darn cool of them. A rare dealership indeed 😎👍🙏

[@newalaa9]

I experienced the same issue. What really worked and fixed the issue: here the job sheet: 1-gearbox mounts changed 2-gearbox oil flush 3-gearbox converter changed 4-reprogrammed the shift ratio (reset) And the car became smooth, yet sometimes I feel little bit but barely noticeable. All job cost includes parts 1000 $.

[@5kwattz]

Well that Fkn sucks if u can still feel it.

[@heriberto491]

I’m sorry of the outcome mine had close to 147k miles and it’s been wonderful the shudder you experienced i did on my 6th gen Camaro i had to sell it i felt like i was going crazy back and forth during 2020 they did not want to fix that transmission so decided to get the Ats flawless experience. Good luck brother

[@sstressfl]

Appreciate it man. I ended up trading it in a 2022 Ram 1500 with a hemi, etorque 4x4. I'm so happy! :) kzbin.info/www/bejne/enW4Z6iXlM5qarM

[@tylerdickey22]

im going to buy a used 2014 ats 2.0t with 137k what should i look out for? do you recommend at high milage?

[@anthonyalmeida8079]

@@tylerdickey22how much you paid and how is it mine is 131k

[@edwardransom5996]

Having the same issue, shudderind occurs around 40-45 mph and again around 60-65 otherwise runs pretty well . The other issue is vibrating when vehicle is in revetse.

[@sstressfl]

How many miles? What year is it? Is it AWD?

[@juniorxp102]

@@sstressflI have a shudder/vibration that comes from the engine and you can feel it shake the car. I’m not sure what it is but it’s a 2013 ATS with the 2.5L engine and 122k miles. I’ve heard many different things that it could be but still have yet to find the problem. The car drives smooth but when I ease into the pedal it starts the vibration around 30-45mph. It idles fine and I really love the car just so sad to find out that these cars have many problems.

[@sstressfl]

@@juniorxp102 Def points to the transmission. yes it can also be spark plugs, a coil, a bad motor mount... but you are describing the exact issue my car had. Drop the trans pan, new filter, new fluid. You can use standard Dexron VI fluid from ACDelco (GM brand). Drive it awhile. Then you might have to do it one more time to completely fix it. Or find a shop to power flush it and install a new filter for around $300-600.

[@juniorxp102]

@ thank you for the advice I’ll definitely check it out!

[@deltonsr]

So basically I had the same issues and stalling on a hill with a 2014 ATS 2.0 and took it to Cadillac numerous times, they concluded lean issues and some hose kept coming loose and after so called repair it still does it. The car makes you always feel like something is wrong with it and you just don't know what's normal. So basically time to move on to another vehicle that takes regular gas!

[@sstressfl]

I know the feeling. You are making a wise decision. I hope you find a car that is reliable and gets amazing fuel mileage.

[@deltonsr]

@@sstressfl I appreciate it, it is my first caddy, I always wanted one and got mine at a good price but I think the previous owner was having issues and was tired of dealing with it or they got tired of the 16 miles a gal on premium gas. Glad I got to watch your video and glad I'm not the only one based off of your video and some of those others in the comment section.

[@sstressfl]

@@deltonsr yeah you’re not alone. I get messages almost everyday from ATS owners having problem after problem. Too bad cuz it’s truly a wonderful design. Just has poor quality parts.

[@micahcavanaugh1331]

I have 2013 Ats 2.5L. Shudder has got worst. Dealership quoted me $689 for power flush and filter change. I’ve called a couple shops near me and was quoted around $300. Just worried they won’t use the right fluid to fix the shudder. Any advice?

[@sstressfl]

I'd go the $300 route (as long as its a real flush and not just a pan drop with new filter) and make sure they use the factory Dexron VI spec fluid. It doesnt have to be the fancy mobil stuff. Your 6 speed will like a clean filter! It will restore line pressure and should stop the shudder for many many miles to come :)

[@ivantuma7969]

If it comes back - make sure you're not running on over-inflated tires. I went through two years of scratching my head with a Buick TourX. Same engine in the AWD Insignia platform. I had a persistent shudder that felt like a mis-fire under moderate load. When I reduced my tire pressure from 40psi down to 35psi ... the shudder almost completely went away (Dropping it down to the factory recommended 32psi would probably completely eliminate it). I also noticed you've got aftermarket rims and tires which may be exasperating the problem (anecdotally from having a BMW 740i in the past - I could not get rid of a vibration until I switched back to OEM wheels and tires). That grumble? You're driving in snow and ice - could it have just been a piece of broken off ice and grime that got caught between your wider aftermarkets and the plastic fender guards? Anyway - all the best. These are very nice cars for the price compared to some German and Japanese competitors.

[@sstressfl]

Loose rear differential. They never installed it properly. And a very low audits part.

[@Good2bking]

Mine started with a studder turned into engine shake and misfiring , took it to 2 shops they couldn’t figure out what was wrong with it , and these are highly rated mechanics from my area . I eventually got rid of it , too much money pumped into it

[@sstressfl]

I’m sorry to hear it. I traded mine as well.

[@armystrong2006]

Fuel injector or spark plug misfire

[@sstressfl]

Always a possibility. Could also be a failed engine mount, trans mount. But in this case it was the transmission.

[@armystrong2006]

ats known for rear drive train i almost purchase used ats the shudder started at 50 mph then thump from rear end they tried to knock off 2000 dollars i kept my explorer@@sstressfl

[@slikster4life]

I have a 2013 XTS that I've had for a little over a yr. I had bought it in north Jersey and drove it to Delaware. Drove like a dream. Few days later I noticed that after driving for awhile after a complete stop I would get shuddering from 1st to 2nd gear. If I babied it frm and very gently let it get up to speed no shudder but I knew I had to fix it. Long story short and 9 months later the transmission guy had to rebuild it and found the problem after going thru much of the trans. Only problem I have is that sometimes it takes 3 to 5 extra seconds for it to get in reverse...

[@sstressfl]

I have heard this story often. I’m glad it’s fixed! Mine was flushed and no longer do I feel shudder from the trans. But still fighting some driveline vibration under load. Btw, it’s possible your slow shift into reverse is a simple fix. An adjustment to align the shifter settings. Or it’s a little low on fluid. Thank you for the feedback! Enjoy that XTS 👍🙏😎

[@kinghannosh1768]

Hey what was the problem, I’m having the same symptoms as ur having

[@slikster4life]

@@kinghannosh1768 had the trans rebuilt...

[@kinghannosh1768]

@@slikster4life when u had those symptoms did ur car also jerk forward after acceleration? Like when u stepped on the gas hard then let go, did you’re car jerk forward like as if someone bumped u from the behind

[@slikster4life]

@@kinghannosh1768 no

[@r.serrano9377]

Glad she is back. So what motor oil are you using? I’m using the Mobil 1 ESP. That weird growl might be the rear end. I’d replace rear diff oil again and check for shavings. Anyways, good luck and enjoy.

[@sstressfl]

Valvoline dexos 2 👍 I do think it could be rear end. It’s brand new, replaced recently, but that doesn’t mean it’s brand good 😂 I’ll check it as soon as I can. Hey, Merry Christmas🙏 have a great new year!

[@tankertuff9947]

Thanks for the video! Wife’s car is a 2013 ATS 3.6 just changed transmission oil, keep the videos coming

[@sstressfl]

Will do! Working on my latest. Hope to have it out soon.

[@jesusmane1304]

Any update. Is the transmission ok after changing the trans oil

[@sstressfl]

It’s a longer story… but in short the dealer did a trans flush and that cured the shudder. The rear diff however ended up being an ongoing problem.

[@tankertuff278]

@@jesusmane1304 I just did a complete transmission flush a few days ago, came to 340 mechanic to told me the issue with just doing a transmission oil change is that you only swap 6 qts out, the other 10 are still in the the transmission and transmission cooling system. As of right now I’m being told the vehicle needs to go back to caddilac to be reprogrammed. Shit is aggravating!!!!! But to answer your question transmission is fine.

[@NonameNoLastName-v4y]

I have a 2013 bmw 760li v12 and it has the same fn problem . Drone sound at 60mp . Dealer told me it has bent wheels and they gave me wheels for free . And still has same problem

[@sstressfl]

If it happening when you are in high gear and give it just a little bit of gas, I would guess slipping clutches in your transmission. I don’t know a lot about these cars but I do know they will drone/shudder with age and wear. Some people have success with new fluid/filter and adding a friction modifier.

[@NonameNoLastName-v4y]

@ thanks for info

[@jesusmane1304]

Not sure what I need to do My 2013 xts platinum sometimes studders and hard shifts between 1st and 2nd Does not do it on every gear just 1st and 2nd when up shifting or downshifting

[@sstressfl]

The typical fix is a complete fluid flush (and new filter). These transmissions get filled with metal debris and clutch material. Messes up friction and line pressure. Fluid flush is a good place to start!

[@kinghannosh1768]

@@sstressfl I drained my old transmission oil and put a new one in, do you think it’s better if I did a flush?

[@anthonyalmeida8079]

traction control and stability light is on with blinking engine light after several shudders … change pvc phose both rear axles n front hub still doing it n lights on any recommendations ?

[@sstressfl]

Hmmmm I would post this as a topic on the ats forum…. www.cadillacforums.com/forums/ats-general-discussion-forum.305/

[@locutus1126]

I had same issue the day after changing the pcv hoses that were cracked. I then found oil in the ignition coil pockets. cleaned it up but still have a little shudder if I accelerate fast. Did you solve the issue? What was it.

[@jonathanrestrepo4883]

time to change your Transmission Fluid if that does not work most likely the torque converter problems.

[@sstressfl]

I am beyond that :)

[@tuffguy40]

I got a 2016 Escalade, it’s @ dealer now getting trans flushed now , started shutting, they said it should fix it , , I’m under 70k power train warranty, transmission flush is $600

[@tuffguy40]

Lol , just saw your video, flat spots , WOW 🤩, glad you didn’t have the shutter , my bill is $1400 get other work done on it , they gave me a 2020 XT6 sport as a loaner , love this mid size suv

[@sstressfl]

I did have shudder at 20,000 miles. They put me off but eventually fixed it under warranty. Mine is the 6 speed. Before they did the flush I changed the fluid and filter myself. Made a huge difference but not as effective as a full flush. I would have had to change the fluid manually 2 or 3 times to get the best results. Expensive process! I forget that dealerships charge 150/hr! I’m sure you’ll be much happier when they’re done. 😎👍🙏

[@tuffguy40]

@@sstressfl got a call today , the flush is covered under the 70k power train warranty & replacing cue screen under Cadillac warranty, but also getting $1400 worth of maintenance service, front brakes/ rotors, brake fluid flush , transfer case & both diffs service, wheel alignment, oil change & filters replaced,

[@sstressfl]

@@tuffguy40 Man it sounds your Caddy is feel like NEW when you get it back :) That's awesome. And great news on the warramty stuff!!!

[@mearasmall8503]

Woah that is freaken crazy. What is the chance that while looking for a fix for my car I find a video that takes place in my town?!?! I just moved to Charlestown like 4 months ago!

[@sstressfl]

Are you from Springfield? Thats insane!

[@rmtz59]

I was wondering if you finally ended up changing your torque converter or the trans/torque as a whole?

[@sstressfl]

The dealership experience was a mess. This was a new dealer for Cadillac. They picked it up when the other guys went out of business. Officially they were supposed to say shudder is normal and send me on my way. That’s what the other dealer did. But this mechanic fixed it, but he told me he did nothing. I assume he got reamed for doing work Cadillac refused to pay for…. And if they fixed mine, they would have to fix everyone else’s. The transmission was flawless. So I asked another mechanic what the other guy did to fix it. He said “he flushed it”. However the rear diff was a whole diff story. Eventually I figured out that they never replaced the 1 time use bolts. And they did not torque them to spec. The rear diff was loose. Shook itself to death. It kept failing from improper install. But also, it’s an incredibly fragile thing. Too bad. When I went to upgrade the rear diff myself to the m6 Camaro diff, my wife said nah… just go get your truck. So I traded the ats.

[@rmtz59]

@@sstressfl I took mine to the dealer and they did something for free because it sat there the day before and the didnt even look at it. I did have an appointment. Anyway, I also did the flush you did twice, with filter and anti-shudder. I have 2017 CT6 TT with 60k paid off so trying to figure out if a new torque converter alone will solve the problem or just do the trans as well while its down. Total for trans and converter about 9k, torque convertor alone? thanks for the reply.

[@sstressfl]

Whew! That’s very steep. You have the 8 speed. It actually has an oiling problem. If the 2x pan drop didn’t fix it, a power flush is typically the only way to fix it. And then repeat every 30k miles. Hope you get it sorted and it doesn’t cost 9k! 🙏

[@jemirjemirp3267]

Hi there, my 2013 ATS 2 started doing this. So basically change the drivetrain and transmission fluid? Forgive me for my ignorance. I know very little about cars.

[@sstressfl]

The dealer eventually told me they flushed the trans fluid and that fixed it. I also changed the front/rear differentials and transfer case fluid and it has been maaaahhhhvelous!

[@jemirjemirp3267]

Thank you so much for replying! And thank you for these videos!

[@howardmotley2104]

I have a 2013 srx and I've maintained this vehicle through the dealership mechanics, I still have a humming while driving, everything has been changed, rear differential, all sensors, transmission fluid, nothing changes, time to buy Japanese, at least that's more dependable. I'll never buy another Cadillac as long as I live, they don't make them like they use too.

[@sstressfl]

Sorry for your trouble 😔 Cadillac seduces but I got burned so I won’t be back either.

[@PapawsDadillacOEMplus]

We in here boys

[@gotaplay]

The only time I get a " shudder " from my 6 speed standard ATS is after I run over a BMW 😂😂😂😂😂😂

[@sstressfl]

🤣😂🤣

[@eromero1988]

Technical service bulletin 18-na-355. Full trans flush on my 17 cadillac ats. Shuddering at 1500 rpm. 500 dollar fix without warranty.

[@sstressfl]

Mine is a 6l45... the tsb does not apply. BUT the same solution provided the fix 👍

[@MJ-hg1mk]

My 2015 AWD XTS 3.6 had/has same issue. The TSB work provided temporary relief. It never 100% left.

[@gabrielhenderson6959]

I think they were doing their best to help their customers

[@sstressfl]

Well when I went back the last time I was told things would be different. The cs rep lost her job and the service manager was demoted and replaced.

[@gabrielhenderson6959]

@@sstressfl are you planing on getting another caddy ct4 or ats

[@sstressfl]

I traded the caddy for a truck and the we upgraded our popup camper to a 30 foot travel trailer. If there was ever a caddy that I would be interested in… it’d be a ct5v. But right now, I’m truckin’ 👍 do you have an ats?

[@gabrielhenderson6959]

@sstressfl I have a ats 13, I don't really be seeing ats anymore

[@sstressfl]

@@gabrielhenderson6959 I see em around here but they come in from NY, MA, CT… city folk :)

[@GO4SEVEN]

It’s timeless regardless of The problems. It’s like a bad kid. You have to go to school often because your child is misbehaving. But you still love that kid. Lol

[@sstressfl]

The car was and is an amazing engineering accomplishment. If I was a rich man I would have upgraded everything to make it more bulletproof so I could keep driving it.

[@GO4SEVEN]

@@sstressfl same here bro. Just like you. I’ve been going through. Issues with. Mines. I had to rebalance the tires. Change the cat, vet silenoid. Now it drives much better. But im trying to figure out where. Is the issue that’s making. My gas mileage as efficient as it once was.

[@sstressfl]

@@GO4SEVEN I feel for you! In regards to mileage, check your brake temp on all 4 wheels after driving. See if one is much hotter than the others. If so, you have a dragging brake which will slowly degrade your mileage. I bought one of these laser temp gauges and it works so well on brakes. Cheap too! amzn.to/4ahk4Gl

[@GO4SEVEN]

@@sstressfl did you get rid of it. I plan on keeping it. For much longer. Even when I get my new Cadillac. I just will do an engine swap and change the mufflers. To help preserve the life. Of the car.

[@sstressfl]

@GO4SEVEN that was my plan! I was revving up to do an m6 Camaro rear diff upgrade. But instead of spending about $2k on new parts I traded it in on this kzbin.info/www/bejne/enW4Z6iXlM5qarMsi=7kkjtDnRS_vLYYZJ

[@xenbunny]

We have a 2016 ATS that has been nothing but problems since we purchased it. First the digital panel glitched out, had the whole panel replaced. Then the rear differential had to be replaced and just recently the brakes went out completely while driving. So much money for repairs. It’s a shame because it’s such a beautiful car but I can never trust Cadillac again. On the flip side I have a 2001 Lexus that is still working great. I don’t understand how Cadillac would put out such garbage.

[@sstressfl]

I feel your pain. Most cars I have owned I've been able to put 100,000+ miles on them without any issues other than standard maintenance items (brakes, oil, struts, etc)... but I have never owned a car like the ATS that has so many failure points. And worst of all, its not uncommon for the same part to fail multiple times. Unfortunately it has poor quality parts... but it does excellent engineering and design. The car is amazing to drive when its running well. Such a shame. Glad to hear your Lexus has been good to you!

[@getactivewithlou3386]

Mines the same way 2013 sometimes it shuts off at lights it jurks and grinds as well

[@sstressfl]

None of that is good :( hope you can get it fixed!

[@sjajajhshsh1651]

Do you have a rough idle at a stop light ???? Like the car trembles at low rpm

[@sstressfl]

It used to. A tune up and crc valve and turbo cleaner helped tremendously. But the final fix that made it perfect was the discovery of a vacuum leak. A failed active motor mount and connected hardware fixed it. It’s 100% perfect now.

[@micahcavanaugh1331]

Mine has a rough Idle at stop light. It sputters. I have the 2.5L 4CYL. Hate taking to it to shops for a quote because most places charge and arm and a leg

[@budjanzen]

Do you know if there is a way to adjust the ride height in the front

[@sstressfl]

Hmmmm. There is not a simple answer… if you bought it used it’s possible someone installed lower springs. If it’s stock ride height, you will need to do some serious research about the type of ats suspension your vehicle has and what products are available to make change. I wish I could be more help but I don’t have a simple answer for you.

[@budjanzen]

Sometime mine with shift so hard when just getting going

[@slaytonfargo59]

I have a 14 ATS-T with a 6sp manual. What do I need to be aware of??? Just had the rear end serviced as I know this has been an issue. Any input is appreciated.

[@sstressfl]

Ohhhh the 6 speed manual!!! 😎💪🙌 The rwd diff seems to be more stout than the awd rear diff. Just keep your fluids fresh and you should be ok :) and toss in the occasional crc Intake and turbo cleaning with an annual fuel treatment with Techron to keep the carbon build up at bay. You should be good to go.

[@budjanzen]

Also does it sit real low to the ground ..

[@edgarmonzon1188]

Can you have them check the drivetrain. Mines recently went bad cause of the bearings and when I changed it I also heard the drone sounds when I hit about 70 miles. Please let me know what you think

[@anthonydiaz7884]

I test drove 2 different Ats and decided against both because of that same shutter. Beautiful car. Unsettling drive. In the end I went with a new Toyota Camry. I won't ever stand for an unreliable vehicle regardless cool factor

[@sstressfl]

I am with you!! Mine was smoooooth at all speeds when I bought it. 3,000 miles later the drivetrain got all ugly. Sounds like you made a wise choice 💪😎

[@standamangaming1353]

@@sstressfl too many people have the same issue including myself with my 2016, what is the actual reason for the shudder?

[@sstressfl]

@@standamangaming1353 The most typical is contaminated fluid. Too much accumulated metal and clutch material. GM says due to poor oiling and it has a high likelihood of recurrence so expect to do it as an ongoing maintenance item. Perhaps every 30,000 miles? Guessing on the mileage!

[@oh-home-girl7998]

I have a 2017 Cadillac ATS that is doing something similar. My husband calls it a vibration though. Unfortunately, with the exception of my 2005 Tahoe, every GM product we've owned has had issues. The car only has 41k on it. Do you think the transmission will need to be replaced?

[@sstressfl]

If its a shudder and has an 8 speed in it, the trans needs to be power flushed, filter replaced. That usually fixes it. Sometimes there can be torque converter damage and that would need to be replaced. But most often, the flush fixes it. Will need to be done every 30k miles though to keep it healthy. if its more like a vibration, the rear diff might be failing, or if it has been replaced, was most likely installed wrong and the bolts are not tightened correctly and its loose/vibrating. Thats my guess! I hope you can resolve it. And yes, I researched GM vehicles. They have had serious shudder transmission issues going back decades. 😥 Its a shame, because I truly cheer for American car companies. I want them to do well!

[@blakelaw2676]

I have issues of stutter when turning at low mph( like drive way, parking spots, etc.) 2017 ats awd with 42k..any ideas?

[@sstressfl]

Is it your steering rack? Or does it happen when accelerating lightly?

[@blakelaw2676]

@@sstressfl seems to be only when making those type of turns

[@sstressfl]

@@blakelaw2676 typically this kind of shudder is under light acceleration in a higher gear. If you have a shake when you turn Id be worried you have something wrong with your steering rack. There was a recall on the steering racks on these cars because the bolts that mounted the power steering motor (its electric assist) to the steering rack would break. It could be something else but I would start there. Make sure everything is tight.

[@blakelaw2676]

@@sstressfl I use the term shudder, but it almost feels like the auto stop- start is activated. But I turn that feature off every time I drive.

[@sstressfl]

@@blakelaw2676 No engine lights, no codes must mean its something mechanical. Its something I would have to feel for myself before I could make any guesses.... you should have it checked out by a mechanic you trust.

[@SHADOWBLACKs650]

I'm guessing you got a slipping transmission from slipping clutches... Based on all the material you said you found in the pan....

[@sstressfl]

That’s totally valid. It was a clear shudder... characteristic of tc. But I would not be surprised if the clutches were slipping. The trans was filled with metal shavings but I also assumed some clutch like material. The fluid flow was restricted by the clogged filter. When I changed the filter and fluid it was night and day difference. But I only changed it once and did not get all of the fluid out. But right now it feels like a diff car. I’m not sure what was actually done to fix it but for now it’s not shuddering. The rear however is making grumbling sounds... failed bearing sounds 😕

[@SHADOWBLACKs650]

@@sstressfl Can i ask how many miles on the car ? If you had black trans fluid and metal shavings... its the trans. Just my guess.

[@sstressfl]

@@SHADOWBLACKs650 The problem started around 20k. Got progressively worse. The first dealer I asked about it at 35k miles said it was within normal limits. So I changed my own fluid and that helped a lot. Then I went to another dealership for engine issues and asked if they'd look at the trans shudder. That was around 40k. This is what the fluid looked like. Wholotta metal. kzbin.info/www/bejne/qqvadJ6XpN-kg8U

[@greenthumb4600]

I just purchased a 2017 Cadillac CTS Luxury. This is such a beautiful car, but I have had an issue with shudder since day one. It's only in overdrive, and between 50 and 70miles per hour, consistently. I replaced the wheels, ties and it didn't fix the issue. My local Cadillac dealer finally mentioned a know issue with torque converter shutter. So they changed the transmission fluid the other day and wanted me to drive it about 100 miles to let the fluid cycle through thoroughly. The shudder is still there so far and it is so unnerving. If it's not corrected, will they be able to consider replacing the torque converter?

[@sstressfl]

You're right it is a beautiful car. And when it's working right, it drives better than any street car I've owned. It's a gessing game with Cadillac/GM. I wish I had an answer for you. Under warranty it should be fixed. They already recognize that its a problem. And they have an established buelletin for testing the TC. If it keeps doing it, that should be next on the list! Praying for you and a good outcome.

[@newbeginningsreads]

Where do I get winter tires from ?

[@sstressfl]

Local tire dealer is a great start 👍 I bought mine lightly used from Facebook marketplace 😁 I’ve also purchased full steel wheels with studded snow tires installed from tirerack.com. But recently discovered I can order tires from Walmart.com and have them shipped to store and they will install them for me free of charge with only an old tire disposal fee required. Best price yet 👍 Hope that helps! Merry Christmas 🙏 Happy New Year 😎😁

[@newbeginningsreads]

@@sstressfl ok thank you KZbin husband and same to you 💗

[@walter3324]

Have the same problem on my 2014 ATS 2.0. Had a transmission fluid change done and still the same problem. I too really want to keep it but no one seams to know what causes it!!

[@sstressfl]

I have a Cadillac ATS owner friend in Australia. He saidthe fluid flush doesnt work on his car so he needed to have the torque converter changed. There is a new part # that replaces the original TC. Not a cheap endeavor but since he got it done he said it has been perfect.

[@MJ-hg1mk]

GM knows what the (design) problems are. I'd bet everything on that. Nothing less than a federally forced recall will make them come 100% clean... Or after a few people get killed or hurt bad in related accidents... Imagine when this batch of drive trains hit 10 years old? There won't be enough metal left to do anything but replace them. For the lucky ones.

[@BLACKNREDCOLORZ]

So wait what was air plane noise?

[@sstressfl]

I suspect rear gears. Will know better in a few months 👍

[@davidledet1713]

The mobile 1 you've used. Is that the latest (low viscosity)

[@sstressfl]

It was purposely made for the shudder in the 8 speed. It's dexron 6 with a little friction modifier thrown in. There is some technical bulletins on the interwebs somewhere :) Good stuff! Doing it yourself will require 2 or 3x pan drops before the contaminants are mostly gone from the trans. But the dealer did a true trans flush and the shudder went away. The trans needs cleaning, basically.

[@lsjionredlinesupercharged2049]

I don’t understand the shutter I justice when ac is on its slow as balls. on mine that is.

[@sstressfl]

Your car is slow when the AC is on?

[@lsjionredlinesupercharged2049]

@@sstressfl yes it’s crazy slow passed up by Prius slow lol

[@sstressfl]

@@lsjionredlinesupercharged2049 🤣 I just had that happen yesterday in my truck lol Those prius folks have a lot to prove I guess! With the AC on your ATS with a 2.0t should only lose about 20 ft lbs. Sounds like something is def wrong with power delivery.

[@lsjionredlinesupercharged2049]

@@sstressfl yes for sure it’s kinda always been that bad with I put catless down pipe and I’m untuned so running rich which made the issues worse but getting it fixed next month

[@sstressfl]

@lsjionredlinesupercharged2049 that will make all the difference 👍

[@gustavomontalvo2322]

So what should I do to get it fixed I have the same problem

[@sstressfl]

Assuming your engine is solid and its not a motor mount or a trans mount, it would be your transmission causing the shudder. 90% of the time it just needs a transmission fluid flush. If you do it yourself, you cant get all of the fluid out so you need to so it 2 or 3 times before the shudder is 100% gone. But if you bring it to a dealer, they can power flush it and install a new filter. And you should be good to go ;)

[@EyeOfStormProductions]

they probably hate to see you coming LOL ..... Thx for the insights!

[@sstressfl]

Oh yes they got sick of me 😂

[@gregorypazo6446]

RWD or ALL Wheel drive? I drive a 2015, RWD 3.6 coupe premium performance, Magnetic ride control

[@sstressfl]

AWD 2.0t base model here. Standard struts and shocks.

[@gregorypazo6446]

@@sstressfl The problem you are chasing could that be related to AWD, I did not like the AWD personally.

[@sstressfl]

@@gregorypazo6446 The awd does have more moving parts. My issues have been discovered. Contaminated transmisison fluid... filled with metal and clutch material. A flush fixed it. And rear diff failures. The RWD does have a stronger rear diff. But they are all a weak link. And if they are installed improperly, you'll have problems like I've had :) And for the record, the awd in this car is mind blowingly capable. Driving in rural mountainous VT through severe winters has proven its capability. I'm completely impressed by the awd.

[@budjanzen]

Is this only on the turbo cars ?.

[@sstressfl]

No. It’s due to contaminated fluid. Shreds of metal and clutch pack material kill line pressure and cause slip. This is the 6 speed. But the 8 speed is so bad it needs a fluid flush every 30k miles or so. GM says it’s due to a poor design in the oiling system.

[@Thts_dumb]

I’m currently looking at an ATS and I’m wondering if this is common?

[@sstressfl]

I’ve encountered owners with problems and owners with no problems. Personally even with the problems, the car is still my fav.

[@SuperLancewright]

There's a bulletin on that issue the Camaro doing the same thing I work a Chevy dealer

[@sstressfl]

Thats for the 8 speed! Mine is the 6. But as I have come to learn... same problem. In fact, transmission shudder has been an issue for decades with GM. Some times worse than others. The 8 speed rising to new levels of trouble.

[@richarddawson5836]

It sounds like you had a good experience with Springfeild but you should always get a repair sheet for everything that is done to your vehicle.

[@sstressfl]

He claimed nothing. And when I later requested it, they emailed me a sheet that showed nothing. But one of the mechanics said that he did a flush. I have no idea why he didn't feel it necessary to share that with me. Or why he didn't want to document it.

[@richarddawson5836]

@@sstressfl I have a 2016 ATS that is having the same torque converter shudder problem. It is still under warranty and brought it in today and they confirmed the problem. I'm bringing it back next week and the dealership is giving me a loaner so they can repair it. I'm hoping they don't try and only flush it since it is unlikely going to fix the issue. I'm going to push to replace the torque converter as well as the transmission since it also shift hard as well. Did they end up replacing your torque converter?

[@sstressfl]

@@richarddawson5836 I think you'll find that the flush fixes the issue. If not, you'll know right away. The TC is usually not the issue unless it has been damaged. In fact, there is a test they can do to see if its the TC or not before they do any work. I say let them do their work, if it still shudders, continue to bring it back.

[@richarddawson5836]

@@sstressfl There's a class action lawsuit for the 8 speed automatic including the torque converter. This unfortunately is a common issue. I don't think a simple flush will fix we'll see. Is your Cadillac still having the shudder problem or has it been fixed?

[@sstressfl]

@@richarddawson5836 Yes! I'm very aware of the lawsuit that GM has been fighting. However, they dont seem to be pushing back at the dealership. The flush is the fix, BUT even GM says it's not a permanent fix. The cause of the shudder is excessive metal material buildup. GM says the shudder will come back and will require on-going flushes.

[@KellyChastain-s5j]

Let me tell you what doing the torque and the bearings it's the bearings if the rear is trying to go out whatsoever the bearings it puts the bearings

[@JBVantage1]

Have you tried changing the tires?

[@sstressfl]

I have two sets of wheels. Not the problem! I later found out it was a full trans flush that fixed the trans shudder. Rear end is still having problems though. Its currently at the dealer getting repaired again.

[@budjanzen]

Is your all wheel drive or rear wheel

[@bigcheugy2925]

Just bought my 2017 ats I have the shudder also Gona call the dealership soon (from Houston)

[@sstressfl]

The 8 speed seems to respond well to a flush but might have to be done again in the future. It’s a marvelous car. Hope the dealership takes care of you 🙏👍

[@trillamannwinters6963]

Got mines done a month ago and it’s fixed no problems with the transmission

[@sstressfl]

@@trillamannwinters6963 That's really too bad. I hate to hear that. If it's the 8-speed the flush is the official fix. However, you could have another issue. A bad motor mount. Sometimes dragging brakes can make a shudder. Something loose in the driveline. I hope you can find the issue and get it resolved. Its an incredible car but all of its greatness goes out the door when it starts to shudder.

[@Garagebuilt70]

@@sstressfl I had the Flush done on my 2016 ATS AWD at 24k, what a difference it made. I still have the slightest random low speed acceleration shudder but nothing like it was. Also had really harsh up shifts 1-2, 2-3 and the same on the downshifts. Not as much after the flush. I have 32k on the car now and plan on doing one more flush at the dealer. Thanks for the great vids, keep it up.

[@sstressfl]

@@Garagebuilt70 that’s wonderful news! Thank you for letting me know 🙏 Enjoy 😎

[@ellastella4165]

Just bought a 17 ats 2.0 doing same thing at 50,000

[@sstressfl]

Sorry to hear that! A transmission flush is your best bet 👍

[@ellastella4165]

Just done under warranty much better know. Hope it last

[@JeffBazell]

You need a jet engine mechanic who has supersonic hearing and is sensitive beyond most human beings to feel/hear what you do. I empathize with you. I was raised by a perfectionist father who was a pilot and engine mechanic on planes. Plus, a brother who was a jet engine mechanic on 747-400's, also a pilot. They could hear and feel a mosquito flying by while driving 80mph. You may have to live with it. But sorry, your co-pilot from Cadillac (Marc) who went on your test drive sounds like a GM saleman.

[@sstressfl]

Lol I think there is two realities at work. What Mark can do vs what Cadillac is willing to approve. Mark has to balance between keeping a customer happy and Cadillacs decree. The car is wayyyyy better now. I’ll drive it to see if it stays that way 👍

[@Northern_shenanigans_Mi]

Michael is it still smooth?

[@JGard417]

Looking for a rear differential for mine right now, has anyone replaced the carrier bearings

[@sstressfl]

It’s weird but there weren’t any part numbers out there. And the manual just says “replace”.

[@bradleyyuckel6894]

Not gonna lie, I was expecting a more solid fix. Perhaps it is just design flaw. But I've seen others get their TC replaced after the flush didn't work, and that seemed to fix it. I trust Mark knows what he's doing. Just makes me wonder why some dealers are replacing TC and some just do the flush and say it's normal.. I guess as Long as your happy with it. Appreciate the content. Happy Holidays!

[@sstressfl]

There is no more shudder. The fluid change I did combined with the work Mark did. No shudder at all. Mark used a service bulletin from GM to test for TC problems. No slipping! The TC tested as prefect. So its possible (and likely) that the fix in this case is a fluid flush/new filter combined with tightening everything involved in the drivetrain support. I am very happy with it :) Happy Holidays!

[@sstressfl]

Makes me wonder if the new tc didn’t fix it but instead when installing things they had to tighten everything back up. Maybe?

[@budjanzen]

What yr and model is yours

[@sstressfl]

‘15 base ats 2.0t awd.

[@NURU-dm8cc]

Omg, should I worry about this shudder on my 2014 cadillac ats?😢

[@sstressfl]

Good news is you have the 6 speed. With one flush and a fresh filter it should make the shudder go away :)

[@suazzz3070]

How much miles does your caddy have? My ATS only seems to do that when it’s in snow? Then it’s ok when it’s dry?

[@sstressfl]

42k currently.

[@suazzz3070]

@@sstressfl mine is at 37,000. But I love the car

[@18768jose]

Mines at 90K and it’s running strong and no problems. God bless lol

[@sstressfl]

@@18768jose I like to hear that!!! Looking fwd to mine doing the same here on out 😎👍 God bless you my friend 🙏

[@18768jose]

@@sstressfl I’m sure yours will run the same or even better because I’ve been running her hard 😂 It’s my first car and we all know how we drove our first cars

[@newbeginningsreads]

I think the mechanics from Canada 🇨🇦 know more !

[@sstressfl]

Lol why do you say that?

[@newbeginningsreads]

@@sstressfl I had overheating problems with my 2006 Chrysler 300c and the mechanics couldn’t find the problem, went on KZbin , here they go saying the part is sold in Canada and it would cure the problem instantly, I had needed a certain cap and reservoir tank . Went on evert website here in America trying to order something that they make in Canada. I was like wow

[@sstressfl]

@@newbeginningsreads youtube is awesome 😎 I learn so much too 👍

[@marmas5]

Is there a particular grouping of these cars that have this more than others? Certain transmission models? I’m looking into them for a new daily. Any info is appreciated.

[@sstressfl]

This is the 6 speed GM transmission. It has its own known vulnerabilities. But then they updated this car with the new 8 speed that ended up in a class action lawsuit because it is even worse. It requires on-going fluid changes to keep it from shuddering. Here is a list of cars that are effected and IMO you should avoid: gmauthority.com/blog/2019/08/tsb-seems-to-fix-8-speed-automatic-gm-transmission-problems/

[@guintama]

Thank you for documenting this. I am joining the 8-speed shutter club… not thrilled, but covered under the CPO program.

[@sstressfl]

Sorry to hear it. I truly enjoy Cadillacs. Such a shame to have to deal with it. But have it flushed out, new filter, new fluid and you should be good to go for 30,000 miles or so (some go longer) and have it done again to keep it shudder free and smooth 👍

[@jwilli850]

Did you ever find out what that issue was with your ATS

[@sstressfl]

Yes! Transmission shudder needed a power flush to completely cure it. They did one and it fixed it but didnt tell me because the dealer is a new Cadillac dealer and they were not supposed to fix it. Instead they were supposed to say what the other Cadillac dealers say… “that’s normal operation”. And then charge for a flush. The rear differential was perfect when I brought it in. Suddenly when they gave it back it was bad. I suspect someone at the dealership took my old one to put in their own car and let my warranty pay for a new one. And then I discovered why the new ones kept going bad. They did not use new bolts/torque the bolts correctly. The rear end was loose, vibrating, and ruining itself. I only discovered it when it got so loose that a bolt was starting to fall out. And this rear diff is leaking. I think it has been damaged by improper install. Eventually it’ll need to be replaced again. But currently it’s not bad enough that they will do anything about it. And besides, it’s a junk rear end made with low quality steel. They fail so frequently that inventory has become nearly impossible to find. However, the newer and stronger posi Camaro 6m rear diff appears to be a valid “upgrade”. Requires diff axle part #s. It has been installed by others and the reports of it’s use are good.

[@jwilli850]

@@sstressfl I’ll have to stay in touch. We have a 2014 ATS and I noticed it trembles at low speeds almost like the skip shift in my Camaro. When you accelerate more it goes away

[@sstressfl]

@@jwilli850 sounds like how mine started. Of course it could be engine related. But no doubt changing the trans fluid and new filter made a huge difference in mine. I would have done it 2x more times to get it cleaner but the dealer flushed it before I had to. Weird ownership experience. But right now happy to have a car that can do hwy speeds smoothly 😎 Hope you don’t have the same on-going issues and have access to good mechanics or tools of your own 💪🙏

[@kevindavis9550]

Which transmission is in your ATS? M5N? Most GMs with that transmission have that issue.

[@sstressfl]

6l45!

[@kevindavis9550]

@@sstressfl The M5N 8L45 has issues too....

[@sstressfl]

@@kevindavis9550 Yes! Very aware of that one... lots of headlines :/

[@sxvxgebeatz]

@MichaelByrne Did you ever figure it out ? I have a 2013 ATS 2.0 mainly in between 20mph -40mph where you can few it shake , I’ve gutted the cat , put a simulator on post cat o2 sensor , replaced o2 sensors , only fully synthetic oil changes and 93 octane gas and I’ve spent hundreds of dollars trying to figure this out. I need any advice possible please ! 🙏

[@sstressfl]

The full dealer flush did it. For some reason the mechanic wouldnt tell me thats what he did and he didnt document it. But when I asked another mechanic how they fixed it he said it was a fluid flush. It hasnt done it since. Oh, and I had some shudder start from the transfer case. I changed the fluid with GM spec fluid and added 1 oz of trans shudder friction modifier and it fixed the transfer case shudder perfectly :)

[@sxvxgebeatz]

@@sstressfl That’s great ! I’m not that knowledgeable when it comes to the more comprehensive and technical matters of a car just the basics but everything in your video , me and my mechanic did the same with me driving and him monitoring everything on the computer and nothing showed out of the ordinary and one of the mechanics said I had weak mounts as well , idk what that means but I remember you saying your guy righted all that up and Idk if that plays a factor It was the shutter that even allowed me to know my catalytic converter was bad in the first place and it threw a emissions code the P2420 I think but coincidentally he said one had nothing to do with the other , the shutter is a whole separate thing. It’s so annoying. I have the 2.0 Turbo I’m not sure if you mentioned what you had. ?

[@sstressfl]

@@sxvxgebeatz 2.0t awd here! I did have a vacuum leak on one of my motor mounts. They can cause shudder. But most shudder has to do with a transmission thats contaminated with too much clutch and metal material. It needs a new filter to improve line pressure. It needs new fluid to improve friction. And in extreme cases when the flush doesnt work you need a new converter. A proper tuned engine, healthy differential(s), healthy transfer case, correct wheel alignment and healthy brakes all help to deter shudder as well. I hope you get it fixed!

[@JarBro5555]

Installed a ZZP high flow downpipe and shudder went away completely.

[@sinister13cruz63]

Can you please tell me what years. It is.

[@sstressfl]

Mine is a 2015.... 6 speed auto. It has its own unique issues. The 8 speed auto was introduced in 2016 and has widespread shudder problems and was part of a class action lawsuit. The dealer has a flush procedure that will help but I have heard it doesn’t last and needs to be done again.

[@diegom4974]

What size are the rims you were cleaning?

[@sstressfl]

18s!

[@j.rperez5193]

Can you be more specific on the model of oil you mentioned. And can I use it on the CT5 V as a plan to buy that car next week.

[@sstressfl]

The Amsoil SVG I used is best for an open rear end, not a posi. I recommend you send an email to amsoil.com and ask what they would recommend. If they do not have an oil that will fit your application that will usually direct you to the proper lube. You can also do a google search or check out www.cadillacforums.com/. You'll find people just like you working through their issues and sharing solutions.

[@j.rperez5193]

Thanks for the reply. I’m moving away from German cars. GivIng Cadillac a shot. Just want to make sure I get it right the first time.

[@inversereaction5371]

Did the dealer charge you for anything? My dealer wants $700 for the flush and reprogram. Thanks!

[@sstressfl]

My car was a dealer car for a few years. It wasn’t put into service until 2017ish so I still have bumper to bumper warranty until this summer and drivetrain until 2023.

[@inversereaction5371]

I bought my 2017 ats from a dealer about 11 months ago. ( 32,000 miles ) does that mean I'm in the same situation? I'm new to all of this. Also the 3rd party warranty I paid for said they wouldn't cover it because it's not a physical part that went bad.

[@sstressfl]

@@inversereaction5371 the dealer can look up your vin and see if you still have warranty. Is your car shuddering? The dealer has to determine if you have something wrong or not. If it’s smooth then the flush would be on you.

[@inversereaction5371]

I do have a shudder when I sit around the 45mph mark. I'm going to call and have them look it up. So best case they are going to cover everything? Again thanks for all the help.

[@sstressfl]

​@@inversereaction5371 I can't say for sure. Some dealerships are wonderful. Some not so wonderful. But assuming you still have factory warranty that covers the problem, your ATS should be silky smooth. Your warranty claim is "I have a shudder in my car and I would like you to fix it". Let them determine the fix. If the flush is what is required then so be it. If they find a bad motor mount, fix it. If they find a bad fuel injector, fix it. Whatever is causing the shudder.... they need to fix it. Does that make sense? And when you get it back, make sure it's right! If not, take it back again. If you have a problem covered under warranty, do not stop escalating the issue until it is fixed. I hope that helps!

[@gpcaudillo7818]

My dealership did nothing for me they told me they could feel it but could not do anything

[@sstressfl]

Did they do a full transmission flush?

[@squidskunk]

you ever get the feeling they're shining you..?

[@sstressfl]

I believe there are forces at work that make this situation challenging. I also feel there are things not being said... yet the result speaks for itself. Ultimately I am very pleased and thankful 😀

[@budjanzen]

Also the thief sensors ..

[@juniormorales5665]

@sstressfl I’ve been following all your videos on the rear differential I have a 2017 Cadillac ATS AWD 2.0T base model I just changed the rear differential myself put the fluid in and now I feel slight vibration coming from who knows where I’m ready to rip my hair out 😅 because before the rear differential went bad it wasn’t doing any of that so now I’m wondering if when the rear differential went bad on me I was on my way to work and I had drove it to a gas station like less than half a mile so I’m wondering if by doing that I messed up the rear cv axles like maybe they got bent??? I really don’t know I’m also thinking of my wheels need balanced and an alignment because it feels like that sort of vibration ALSO SORRY FOR THIS LONG COMMENT the second problem is that going up hill the car vibrates as well I’m honestly tired of the BS

[@sstressfl]

I'm sorry you're dealing with this as well. I eventually gave up and traded it for a new Ram 1500. I'm happy as can be. Such a burden. As soon as I drove off the lot I was relieved. I didnt even know I was carrying so much weight from that car. Its just not well made. Great design. Poor quality.

[@YoungMAKAVELIII]

Ok so I have a 14 CTS makes some random weird strange noises that a car shouldn’t make after seeing your facial expressions and hearing I’m convinced these cars make very strange noises

[@sstressfl]

Actually they are extremely quiet and smooth when operating correctly. What kinda noise is it?

[@YoungMAKAVELIII]

Just to be clear it is on such a random note that it occurs sounds like metal being ripped like you rip paper but it would happen for like 3 minutes while driving but then go away and tbh I know when a car is going through it but with almost perfect shifts from 0 mph no dash lights or codes pending on engine or trans car rides perfect but for that moment sound like metal being ripped wondering if the ecu is attempting resets electronic wise and it interfering with mechanical attached moving parts I do have a small slip in trans planning on doing a fluid change and refill soon

[@stevelozano9523]

That noise is loud I had to lower my headphones.

[@sstressfl]

Freaked me out! Pretty sure its pinion bearing.

[@jasonr4967]

Do you still have the ATS?

[@sstressfl]

I do! Just put new tires on it :)

[@budjanzen]

If you could get ahold of me I just need a good place to take my car..

[@AliGravi89]

Don't waste your money on fluid I changed 3 time and one time flashed from the transmission radiator it takes 9 liters I spent 400$ only it get smoth

[@sstressfl]

I changed it mince and it made a HUGE diff. And right now it’s sooo smooth I don’t want to touch it. BUT I will probably change it in the Spring just to inspect it for metal 👍 Preventative.

[@stevenlang8778]

My Cadillac is having problem my sunscreen is not working Correctly 1900 to fix and my cue system needs to be replaced another 1500 to fix with only 37200 on it and 7 years old huh 🤔

[@sstressfl]

Wow that is crazy low miles too!! That hurts 😕 Very sorry to hear.

[@williamwoodson4367]

Steven, if you still have your car, and haven't purchased a new CUE unit, there's probably nothing wrong with your CUE System except that it needs a new touch screen. I ordered one from CUEScreens on Amazon for about $150.00 and replaced it myself instead of buying the whole new head unit from Cadillac. Has been working perfectly for over a year now.

[@401Impala]

Hey Michael, really enjoy your channel! I pick up my 2017 ATS 2.0 RWD tomorrow! 23K miles, not too shabby. Honestly, i mod every car i own but with this one, it's going to be cosmetic only. No track days for the Caddy lol. Hopefully that puts the odds in my favor with mechanical issues. Love the wheels on your car, i think that will be the hardest choice i'll have to make as my ATS is " Bronze Dune" in color. Not a fan of chrome and i dont think black wheels will look right on it. Oh well, such choices keep me young! Again, great channel! Thank you!

[@sstressfl]

I have stayed away from mods for that very reason. Anything beyond stock scares me! Thanks for the feedback 👍 Enjoy!!😎

[@2GreedyT4]

How’s your car been ???? I just picked up mine this weekend

[@2GreedyT4]

How’s your car been ???? I just picked up mine this weekend

[@401Impala]

@@2GreedyT4 I've had no issues

[@W6RK]

I think the GM Specific color you’re referring to is, “Summer Gold” I have the same paint tone, beautiful

[@offgridtx3043]

got to be a dam engineer to work on a car nowdays.

[@sstressfl]

Or really good at gaslighting 👍

[@tintocherian7715]

What model year and trim level is your ATS?

[@sstressfl]

2015 base, awd 👍

[@tintocherian7715]

@@sstressfl maybe you can trade it in and lease a new CT5 V? Def go for the 2021 since they added fully digital gauges and wireless carplay. They got alot of things right on that car and its more accommodating if you have a family.

[@sstressfl]

@@tintocherian7715 I like how you think 👍

[@tintocherian7715]

@@sstressfl Lol I'm a fan of Cadillac sedans, ever since I saw the STS V and CTS V (and V Sport). I really wish they could have put the same wide screen OLED dash from the new Escalade into the CT5 at launch but rumor is that a similar setup will eventually make it's way into all Cadillac models. I don't know how I feel about their claim to be transitioning to fully electric vehicles in the next decade but hopefully they can get out a next gen CT5 V before that happens. gmauthority.com/blog/2020/02/all-future-cadillac-vehicles-to-feature-larger-oled-screen/

[@sstressfl]

@@tintocherian7715 Now THAT is a classy integrated screen! Beautiful design!!

[@BobsGT235]

This car should have been a buyback or declared a lemon long ago. I don't know why you put up with the bs.

[@budjanzen]

I’m in Az

[@budjanzen]

Ok yours is all wheel mine is rear wheel

[@MammothFinger]

If I close my eyes, you're riding with Danny DeVito. I'm jelly.

[@sstressfl]

Awwww man!! I like Mark. I like all the mechanics at this place. I wish I wasn’t the customer-adversary.

[@relentlesseducator]

It was rough watching you eat that

[@sstressfl]

Thank you for your sympathy. I'm heading back in next week for the dealer to look at the rear end again. Symptoms are typical of failing pinion AND carrier bearings.

[@Shawn_M]

Wow, I have a 2018 ATS 2.0t. mine developed the shudder a few months ago but the fluid change/upgrade fixed it 100%. Sorry you're having such bad luck

[@sstressfl]

They eventually did the flush and it seems to have fixed it. The rear end has been replaced twice now. I still detect a rumble at certain engine loads but will see what changing my transfer case fluid and front and rear differential fluid does to smooth things out. But I suspect the tc needs to be replaced.

[@Shawn_M]

@@sstressfl forgot you're AWD. I'm RWD. You might be right about that transfer case. It's on demand AWD, right? It's it a computer controlled clutch that sends power to the front?

[@sstressfl]

@@Shawn_M I know the bias is rear wheel drive unlike most modern cars that are fwd. In the snow I have seen the rear slip then the front wheels kick in quickly. I saw a diagram of the system once but can't find it now. But yes there must be clutches that engage and disengage each wheel as needed. An ATS owner said he replaced his transfer case fluid and added a little friction modifier and never had a problem with shudder again. I'm not going to add friction modifier, but willing to try fresh fluid :)

[@KellyChastain-s5j]

Yeah me neither the Cadillac dealership in Gainesville they most definitely not nice

[@johngranato2673]

Love the mouth mask

[@sstressfl]

Man that was horrible.

[@johngranato2673]

@@sstressfl Sorry. Hey, but I do like your channel, though!

[@savagechristian5295]

I’mi think your completely NUTS 🤪

[@sstressfl]

Nah the dealership was nuts. I later found out Mark flushed the transmission but he was not supposed to. He thought it would be warranty work. Cadillac refused to pay for it and I suspect if they did they would have thousands of ATSs they would need to pay back. But that rear differential? Later found out it was installed wrong as it was loose. This relationship just got progressively worse. I tend to trust people. But after this experience… (you’d have to watch the series) I would never return to that dealership. Nor would I buy another Cadillac. I know cars fail. But it’s how they treat you under warranty that matters.