What I Found After Removing My Duramax Heads!

[@ninegeorge]

When I see cabs lifted on Ford and Chevy to get to these massive engines, I'm so glad I bought a Cummins

[@TruckMaster]

The good thing about the Duramax is that you don’t have to pull the cab to do this job. It’s just easier for videos and access

[@jaredmayer3960]

Some dude in their garage can be capable of better work than a shop. It actually happens all the time.

[@duramaxadventures5832]

trying to make as much money as fast as possible sadly. vs caring about quality "shop has insurance for a reason" *facepalm*

[@dickmaurer2628]

home boys arent so great as you think. Getting one job a month is different than fixing 10 cars a day.

[@danielalamo2075]

Thank you for the tips on head gaskets. I'm getting a little nervous about our 04 GMC Sierra 2500hd 4x4 duramax. It's at 345,000. It's going in Monday to have the flex plate replaced. The starter won't engage half the time. Transmission and transfer case were rebuilt at 295,000. Trans went out and t case was melted. Everything is stock no extra power adders. And it is an everyday truck and a ranch truck towing a gooseneck livestock trailer. Not used really hard definitely not beat on. But I replaced the starter because truck had an issue of not starting ( nothing happened when key was turned but I could jump it with a screwdriver on the starter). It was an O'Reilly Auto starter and they checked it and said it was bad and would warranty it. Also the starter was starting to not fully engage. When I replaced it I noticed damaged teeth on the flex plate and truck still wouldn't start. Turns out there was a dealer installed anti theft device and the relay went out (our local shop found it and removed it). Anyway, about a month later starter back with not fully engaging. I wish I would have thought about it when transmission was done. Now flex plate has to be replaced at a much higher cost and I cannot do it. I did do it on our 91 GMC Sierra but it is a gas truck and 700r transmission (much lighter and I have to work in the dirt). I can't afford a newer used truck and you can't find them around here anyway. When you do find one they have as many miles as ours and still cost almost $30,000. We are in the central valley of California. Again thanks for the tips.

[@jeremyrobertson835]

Sad to see such a beautiful truck in pieces. But really enjoy how you go through step by step on how to do everything properly. Good luck with the Duramax! :)

[@kaseyschaffer7692]

You can tell by the bill of Ryan’s hat that he does his fair share of troubleshooting. The ol bill squeeze while you ponder.

[@admiralfloofz658]

I was gonna comment on that and its the first comment I see haha. I thought my cap was bad but man.

[@hughobrien4139]

Interesting pressure testing methods. I own a machine shop and have had the pleasure of pressure testing one too many duramax heads. The years with the pressed in injector tubes are a job I will no longer take in unless the customer agrees to updating to the threaded injector tubes. My pressure tester will blow the injector tubes out without the injectors toe clamped into the heads, then you stand a chance of missing a leaking or cracked injector tube. The threaded injector tubes will allow for further material to be removed from the head if need be. Have had no problems milling .015” off of the heads this way. I have seen cracks in certain duramax heads that were very hard to detect in a submergible pressure tester. The crack was so fine that the pressure leaking from the crack resembled a faint smoke emitting from the crack. We had to warm the head up to realize the severity of the crack. So pressure testing can be a dicey subject. Good content.

[@johnschuster9192]

So I have an 02 Chevy Duramax with 245,000 miles .Its had had three sets of injectors...GM paid for the first time..$ 10,000 in repairs...I'm getting tired of all the money flying out of my pocket..Within 6 months I would like to buy a 2018 -2021 which of the trucks ,GM,Dodge or Ford have the least problems...? Don't get me wrong ,I love my little truck for the pulling power compared to a gas rig..I have $14,000 + in repairs and its only worth about $10-12,000

[@dans_Learning_Curve]

New sub here. Found your channel as a KZbin suggestion. Just did the head gaskets on my '03 Subaru. I was there when the machinist surfaced the heads. You could see the low point in the oil return area where it was leaking oil. MLS gaskets, no more leaking. Got the car cheap because the owner had it over heat. Called a mechanic, he diagnosed it as bad head gaskets. Yes, they were leaking oil, but not coolant. Turns out, the major leak was coming from a broken hose clamp on the lower radiator.

[@michaelparker5814]

That block looks perfect still has the heat treat marks in the cylinder looks just like the blocks my job makes for gm for replacement blocks prbly just a case of cheaping out on head gaskets

[@haskellburks]

Hello Josh. It's hard to believe that you fixed it with what you thought was the problem but found out that it was the head gaskets.

[@ch3vy327]

Favorite truck KZbinr you are. And great group you work with. Really enjoy the Ryan’s and Kodiak content. Thank you for your Military service and KZbin service! 🤘🏼

[@thomasheer825]

Not a diesel fan for a long time, they have a place but they are not cheap. Back in the 60's diesels were mainly on big trucks, farm and industrial applications. Yes they were expensive to purchase outright but then they required very little routine maintain to keep up. At the time gas engines required ignition change out every 12-15k miles. So you were constantly doing minor items to maintain them and then the fuel was at the time about a dime a gallon cheaper for the diesel. Well times are a changing quite a bit. Right now a gas engine will run practically 100k before needing a tune up. With Fuel Injection on a gas engine a set of injectors will run you most often less than $100 for a full set. Sorry basically those injectors work no more than 70psi so the failure on them is usually they need cleaning due to the crappy blended fuels. So the upkeep for a gas engine is now much less than it was in the early 70's. While diesel engines the cost of upkeep has become astronomical with the addition of air pollution standards now required. Now with common rail injection required to meet current standards injectors fail at a regular interval and one injector costs several hundred dollars and the changeout cost is again several hundred dollars. Now with EGR mandatory on most diesels this causes massive issues that are not cheap to address. The days of the old "Diesels are cheap and reliable" are a thing of the past. My suggestion is simply unless you run the engine at full load all day long, like an over the road truck or farm equipment a diesel isn't a good choice for you. If you actually NEED that torque of the diesel, mostly a lack of confidence issue, add a aftermarket turbocharger to the gas engine. Did this to my old Jeep Wrangler 2.5lt and now it will pull like mad when I need the power and the rest of the time it isn't really any effect.

[@jamesgeorge4874]

Scotchbrite "whizzy wheel" witness marks on the deck and heads is a sure sign someone did not know WTF they were doing.

[@ronnieboucherthecrystalcraftsm]

alloy head on a cast iron block ! = multi layer steel gaskets best !

[@msoto951]

This guy deserves more subscribers.

[@TruckMaster]

I appreciate it

[@tomriggle3217]

There's more dependable diesels out there than the duramax My opinion

[@WBOS72]

The hoist was a great investment. Makes your life easier working and filming.

[@TruckMaster]

So true 👍

[@jerrycann6374]

I build my engines and know how hard it is to find anyone to work on cars. That shop has to have integrity and know what they are doing to allow anyone in with a camera filming live...

[@timbow50]

Continually fascinated by you guys ability to do things like this and put it all back together PROPERLY! I've been so fortunate with my 2007.5 mm. 268k and still runs great. I've had it since 62k miles. It's my hunting rig. I've used it hard but never abused it. Thinking the starter is dragging a little finally?

[@TruckMaster]

Thanks Tim

[@trentdawg2832]

I love my '08 lmm, all I have is a h&s minimax tuner, cause I live in comiefornia I'm limited to mods....but just that tuner set to street mode wakes my engine up night and day....it has no problems lighting off my 37" tires and leaving cars behind at the light....people always ask what I did to it and they are shocked when I say it is all stock with just a hand held tuner.....motor hasn't even been broken in yet with only 74k original miles....I bought it with 24k miles from the original owner who had a job for the city and had a provided vehicle so this truck just sat, he thought someone else would be able to enjoy it more than he did and he was right. .....but seeing as how between me and my wife we have 6 vehicles and we shuffle them all around so we are able to keep are miles low on all of them!!!

[@manuelgutierrez7568]

Josh you and the guys at Ryan’s diesel are the real mvp! Doing HG on my lly with my old man your videos have help me out ton on what gaskets as well as tips and tricks! Thanks!!

[@ronniebenoit4081]

It's also suggested if you're overflow tank is leaking or a small leak the duramax engine will not build the right block pressure to circulate....I did the fleece rear block for the water tub coming up behind the turbo....it was losing water but never showed a source and when I pulled it would get warm....hence the tiny drip from the block (not building enough block pressure" just my experience

[@gabrielzazueta2218]

In your opinion is a dually that much better when hauling? I’m looking for an lbz dually in my price range, but it’s proving difficult to find in my price range 15k. I’m looking to haul up to one ton trucks, smaller rv’s (class b van style), skid steer, maybe a backhoe. I buy and sell so would be using to haul pretty often. But if I get a single rear wheel, I can use it off road and more versatile. Thanks!

[@mitchellclark8271]

So we're these trucks modified and cranked up power wise? As I recall the head gaskets on a Duramax are select fit at the factory. What happens when machining them. I think there were three different markings for the proper selection of the head gaskets.

[@richardfinney3169]

Looks like the injectors on the passenger bank are dumping fuel into the cylinders? Causing a lot of fuel to be compressed at start up.this definitely will kill a head gasket; the left bank looked normal . Great video thx for sharing

[@scottcurry479]

Watching this makes me love my 300 6 even more.

[@BruceMyersLBZ]

A little easier to work on, n a bit more affordable as well lol

[@joeybingham8494]

Awesome video! Can’t wait to see it get put back together!

[@connerhoward3057]

I love your vids man,I'm about to buy a 1978 f350.I think it would be really cool if you bought a 70s ford or even a 70s gmc/chevy

[@TruckMaster]

I got my eye on a 70’s truck I might get it

[@theweldor757]

I got a 77 chevy 3/4 ton . 350 turbo . 400 sbc . Q jet . 4:11 gears . 35/12.50s . 6 inch lift . Truck kicks the snott outta these deisel trucks . Buy the time everybodys turbos spool up , ive already checked out ! Last guy was hilarious ! Had him beat by 20 truck lengths . I shut down a third of a mile down the road . 10 seconds later he came smokin by on the shoulder a the road . LMAO

[@sammyprestwood3182]

Wow a lot of work and the truck is so new I don't think I'd ever buy a Duramax diesel thanks for the video

[@lenhofer3214]

I had the same problem I could not find a leaking gasket or a damaged gasket... the only sure way I found out that it was a head gasket leak is after I had taken the headbolts out I had him laying in the shop for a time and I went and looked at them nd noticed that 6 of them were rusty....the rest were clean n coated

[@barryhebert5839]

They probably just pulled the factory bolts an just shoved the studs in with out even taken the heads off an changing the gasket

[@jeffbell1745]

I've got an LLY with over 320k miles on it. Last summer it developed a slight tick in the front drivers area of the engine. I checked the injectors and #2 was bad so I replaced it. When it first started it ran great but when I got home from the test drive I noticed the tick was back, was louder than before and the engine had developed a slight miss at every ticking sound. The radiator hose doesn't get hard after driving and it doesn't lose antifreeze but I know that it can still have a blown head gasket. I'm planning on replacing the head gaskets but want a good reputable shop to rework the heads. How much do the guys at that shop charge for rebuilding the heads as long as the heads are good? I live in southern Illinois so I'd have to ship the heads to them and have them shipped back.

[@Toolaholic7]

Another cause of headgasket failures is improper gasket surface cleaning.GM has a TSB not use scotch brite pads on a die grinder out.Found the little pieces get in the oil and the oil filter can't trap them resulting in premature engine failure.Plus take off too much material at a fast rate.l did tell someone to check your channel out and shown it to him,he has a 2015 Chevy 2500 HD with the Duramax.He spent $14,000.00 to have the whole fuel system replaced.The pump went bad and everything was replaced in the fuel system

[@thisisyourcaptainspeaking2259]

I wouldn't whiz-wheel any head gasket surface and going thrugh that much work, the machinist would be involved with making sure it's flat and gasket selection, etc. This isn't a sbc or briggs lawn mower, scraping the heads across the sidewalk won't cut it.

[@jamesstott5988]

I'm on the third cummins in a 2017 ram it's only got 130 thousand on truck and 2000 on rebuild from cummins. Need to delete and bullet proof 6.7 any recommendations.?I'm in Texas great video

[@ChancePearson-n8z]

Really enjoyed the video. It’s been very knowledgeable an helpful. Keep up the good work.

[@darkknightgaming2316]

Okay so I don't know if you will see this or not but I have a 2003 6.6 duramax that I bought when it didn't run had new injectors put in it by a reputable diesel shop but when it is cold the trust smokes a little bit when it is in gear and at an idol but when it is warm it is fine should I be worried?

[@TruckMaster]

Check the balance rates but I would worry to much

[@darkknightgaming2316]

@@TruckMaster alright will do thanks

[@williammarkhart7047]

Back in 88' I let a parts man sell me cheaper head gasket for my 400 Pontiac HO. Lasted 500 miles. I'm a mechanic, the parts man was trying to save me money. I don't blame him. We both learned something. I'm glad it was my engine & not a customers .

[@TonyLasagna]

I wish I had a friend who had a diesel shop that would be rad

[@anthonyyoung7344]

How do you like working on the Isuzu V8 diesel.

[@pogo458]

Ryan’s service looks like a good place to be for the truck🧐

[@tannerdonnell933]

I'm looking at buying a 2010 LMM for 5K because it has a failed oil pump, any input on what I should look at powertrain wise when I go to purchase a non running duramax? I'm a 14 year professional tech and am comfortable replacing anything. Any input would be appreciated!

[@joshmiller8663]

Josh love the video's from Ryan's and Kodiak keep them coming bud

[@scottporter7437]

Thanks from Slam Bang fishing lodge west coast of Vancouver island Kyuquot sound we specialize in good times

[@garrettq4303]

I’ve done a hsp cold air intake and mbrp exhaust what else should I do I have a lb7

[@ng-ht1vx]

When are you doing the little white service body? Looking at the block surface, I'd almost consider pulling it out and getting it decked.

[@TruckMaster]

February

[@kevinoscarson2941]

Betting Block was the cause of the head failure. Roloc discs can do a number on a block if used wrong. Softer head gaskets/multilayer will absorb a certain level of distortion…

[@hellcat7978]

I love the way you go through the process Step by step and explain what ur doing. I learn alot from your videos. I'm trying to start my own shop. Do you have any advice for me?

[@bazookajoethompson3407]

Have a good bookkeeper and a slimy lawyer! Not the other way around.

[@cowboychevyschneider]

keep the great work man just got my 6x6 amry truck running again

[@TruckMaster]

Nice 👍

[@kolby3601]

What symptoms were you having to diagnose the bad head gaskets? Mine holds a residual amount of pressure after 12 hours the upper hose is not hard but not completely soft either replaced cap with auto parts store cap? Maybe go OEM? What are your thoughts Josh?

[@TheRockinProduction]

I had a feeling you were going to put a “I did that!” sticker on the pump, when you showed the price lol 😂

[@joshgoodman150]

Native of michigan as well! Would love if you had some truck meets in the warmer months!

[@casanovazombies356]

I love your videos truck master, I have a 04 LB7 just did head studs ab 6months ago, installing injectors in a week or two!

[@johnmezera2862]

After you machine the head, don't you have to grind the valves?

[@purpleduckhemp]

So you know if the launch scanner you use will do turbo vein relearn? I seen it does gear relearn

[@nathanbrodeur]

Josh when you get back to the block take machinist paint and block sand the heads true that way you are 100 percent it's not the heads or gasket cause how knows maybe whoever wiz wheeled the block created a void caused this whole situation

[@TruckMaster]

Thanks for the advice

[@nathanbrodeur]

@@TruckMaster no problem

[@lcazier619]

Just bought a 2013 lml on way home from dealer low coolant light came on and looks like coolant is getting pushed out of overflow tank😢. Looks like a fun 30 hours in my future.

[@jmg_2_slow74]

Hello mr truck master I have a lbz that’s needs a new long block and recommendation where to get one I’m in tx

[@gilbro1978]

I have a lb7 that was studded and was torqued down so hard that the gasket pressed into the block and trashed it. It was gouged so bad I had to get a new block

[@ronthompson2366]

This is good stuff... well atleast for context for videos. As always the guys at RDS and Kodiak are fantastic. You truly have some great friends there. Just good people who know what they are doing. Hope you atleast brought in some coffee and donuts lol... Looking forward to seeing the remainder of this saga. The WIFEMAX is going to be one nice truck when you finally get it completed. Mrs Truckmaster keep him and Earl out of it ! 😁👍. Now you have the other torn down. Are you going to upgrade anything else to it... injectors ? I take it your going to install new studs ? Good news it seems to be bad gaskets and slightly warped heads. Keep up the good work and hats to Ryan and his crew and his dad on the transmission.

[@andrecampbell691]

Stopped buying GMC vehicles about 10yrs ago and glad I did.

[@justincook4069]

where is that shop located and what do they charge to work on dmax? I have an 2006 Duramax 2500 4x4 need some work done on it ? it's cranking over but think it's in the wire harness no fire to ecm and the shifter rod got bent from putting into park while still rolling

[@TruckMaster]

They are in WI, not sure on pricing

[@justincook4069]

@@TruckMaster okay I am curious trying to fix it up just wanna get it going

[@justincook4069]

would you go with a 4 or 5 in from turbo back?

[@mrmotofy]

Ryan's Diesel or Kodiak Truck in North Prairie WI...kinda southwest of Milwaukee

[@gregorypace2641]

WOW $4 /gal Lets go Brandon!

[@justinking2238]

I had a quick question was wondering if you know if the s&b cold air intake will work with a wehrli cold side intercooler pipe on my 2008 lmm duramax ?

[@brianehrenberger356]

Love the LMM vids as I've got the 07.5 model and it's a beast.

[@TruckMaster]

Thanks 👍

[@mattcaesar5781]

Those lmm are great engines i actually prefer them over the lml(no cp4).

[@quintenhart8330]

Just sold my 2017 L5P (just like yours but Chevy midnight ed) and got a 2008 lmm for 10k after losing my job in September. #thanksbrandon. It's using coolant and hydolocking on startup sometimes. After watching this I'm worried it's more than just the head gasket. Should I just be planning on swapping this engine?

[@jeffheath4435]

That's exactly what happened to me ,did twins , built everything up.The shop used the same gaskets lasted 10000 miles.

[@chrisdeez2176]

Nothing but mahle for head gaskets on any diesel

[@johnbarber4254]

Great video but I don’t see the link to shop for the Molly gaskets

[@dangilbert8391]

Keep Trucking 🚚 🛻

[@waiting4aliens]

Total miles on the trucks please? Rebuild costs? Was the block checked as well?

[@h.h.legacydiesel6724]

The loud and proud turbo on the l.b.z., did it come from R.D.S.? The whistler? I have a L.B.Z and am looking for some big gains and still feel somewhat stock. The whistle sound is loud and awesome. Another great vidio, can you tell us what the gasket was that your friend had installed on the truck, the one that Ryan said he was aware of? It still could have been the head? It took 4-k to clean them up? Good luck on the re - install. ✌🏻❄ 🇨🇦 😎.

[@illinoisoutlaw2197]

im starting to wonder when you will just move to Wisconsin

[@TruckMaster]

If I had a million I would definitely move

[@fredtomanicek2562]

Do they prea check each h gasket job?

[@that11gmc]

Hate having a 26 gallon in my diesel, bout to add a I believe it's a 76 gal aux tank to bed of my lmm.

[@terrellscaife2411]

So where are those guys located at I have a question about my Chevy trailblazer

[@Asomesauc]

Great video if I'm ever in Wisconsin I'm gonna bring my truck to RDS

[@TruckMaster]

👍

[@codysiegrist3355]

I’ve got an lb7 that I bought studded, is there a way to tell what gaskets were installed?

[@TruckMaster]

Yes sometimes you can tell just look at the edges of the head and see what the gasket looks like

[@andresochoa5984]

Love the channel, currently have a 5th Gen Cummins but am looking around for a lbz as my first duramax. Would love some help with some questions

[@damndaniel_fpv]

Andres I have an 07 ext cab with 140k miles for sale $25k

[@jradd3477]

How do you like your 5th Gen? I have an lbz and was thinking about going to those new dodges.

[@mattcornett2028]

What was the body shop you used for the last give away truck? I drive my truck cross country and I'm from the Salt belt love my 04 silverado its set up perfect for what I do but its rusty. I currently work as a contractor for SOCOM and travel cross country. My silverado is rusty but trusty. I would like to chat with you some time about lighting and places to get my rig trrusty

[@jeremiahscurlock7199]

@truckmasters taking 4 thousands off the heads did that bring your compression up?

[@EliasStonehocker]

Can you put an 03 cat eye front end on an 07 classic front end? Mines smashed up since I got my LBZ it’s a farm truck don’t really want to spend a fortune fixing it but having some weird issues with the headlights dim lows and only one high beam

[@TruckMaster]

Yes but you would need the front fenders, good and clip

[@EliasStonehocker]

@@TruckMaster thanks man! Can’t wait to see more on LMM

[@jboone8561]

Use that spare oven in ur shop to smoke some brisket or chicken it works better than you think....unless ur using it for other non food processes

[@TruckMaster]

Powder coating

[@charliebrown238]

Its insane to think someone would go as far as studding the heads ... and then cheeping out on a gasket? like wtf!

[@TruckMaster]

I totally agree

[@benc5237]

Can you do a video of adjusting the valves, is it the same process for that motor compared to an LB7 valvetrain. ? Also should I adjust the valves while doing injections in my truck or just leave em alone?

[@ng-ht1vx]

Several of the better guys around here say that adjusting it to 0.010" gets the best milage and power.

[@TruckMaster]

kzbin.info/www/bejne/iGPKZ4qenZqsirs

[@cesarlaso356]

Learning a lot following you. Thanks for the great content!

[@TruckMaster]

Thanks for the continued support man

[@ronniebray6143]

Hey Josh does Ryan do rust jobs my 2010 is starting to get bad cab corners, and the brace bars on my bed.

[@TruckMaster]

No but he’s got a guy down the road that’s really good

[@ronniebray6143]

Ok thank you. What about here in Michigan

[@AMMO1Sarge]

Hey brother you may want to re-imagine your outro big bro might start looking at you for emissions stuff, kinda like they did with diesel bro’s

[@jeffmoleskivintageiceracin5935]

Thank Brandon for those pump prices. lol

[@TruckMaster]

Yep

[@ricardofierro7041]

Hey dummy , Biden has NOTHING TO DO WITH fuel prices. No president before him HAD NOTHING TO DO WITH fuel prices. Basically looks like you’re a Republican looking to blame the other party. Get your facts straight.

[@jeffmoleskivintageiceracin5935]

@@ricardofierro7041 your the dummy if you think the government has nothing to do with fuel prices. They have everything to do with the price of everything. And since he went into office everything skyrocketed

[@juicebox4755]

@@ricardofierro7041 shutting down a major pipeline wouldn’t cause gas to go up right?..

[@floydstowe]

@@juicebox4755 you want a pipeline running through your yard letem know I'm sure they will be.happy to help you out pipeline wasn't even working

[@mainsfortes5778]

Good job. Learned a lot. Thanks

[@bennunez6927]

Is a chevy oem head gasket considered a junk gasket?

[@NollEngineeringPerformance]

Hard to tell but looks like it was leaking between 6&8, looking at the deck surface seems there’s some discoloration/soot making it’s way from the bore to the bottom steam hole. But I’m also looking at a paused KZbin video haha

[@TruckMaster]

Thanks I will check it out

[@TheBradd88]

My friend all this. For a trapped air pocket.... looking good though 👌

[@lewispaine4589]

Repairing these modern trucks can be a nightmare, wow having to take the cab off

[@TruckMaster]

You actually don’t need to remove the cab it just makes thing’s easier

[@lewispaine4589]

Oh yeah, makes sense. I have owned several 67-72 Chevy /Gmc trucks man they were a joy to work on, climb into the engine bay with a 9/16 and 1/2 wrench and you could darn near take the entire engine apart before lunch! Gone are the days! Merry Christmas and good luck with those diesels (I had an '04 Chevy d-max btw, great truck)Lew from Canada

[@Diddley-js6lf]

What Happened at Diesel Pros where you used to work in Swartz Creek. I remember you from there.

[@TruckMaster]

It just didn’t work out unfortunately

[@Thatlow7.3]

Truck master KZbin master comeome 🤝🤘🏼

[@1BlackopsGuru]

buy ford Internation diesel you will not have issues with lack of appropriate head studs to hold it together.

[@michaelmartinez1345]

That is interesting about the importance of using the right head gaskets... Aluminum parts can loose their temper and become annealed, if heated above 475°F. If the machine had a coolant leak , and the coolant level dropped below the heads, then it is possible that the heat could go above 475°F. Ryan, before the machine work was done on these heads, were they checked for annealing, by performing a Rockwell hardness test? Annealing could cause strength failures of high stress parts, like these heads... I can't tell you how many times that I found aluminum heads that were previously re-surfaced, and re-developed problems not long afterward- because the aluminum heads were heat damaged... It is one of the main reasons that I prefer cast-iron blocks & heads... Much more durable when something like an overheat occurs...

[@highdesertjohn]

I'm wondering what brands it is that has the premature failure. I know you like to keep it classy and not point fingers but it might save some people money and a headache. When my head gaskets were done I was told by the shop that they used Victor Rienz gaskets. They said those were really good, it's been 60,000 miles no problems, so I'm hoping they're good to go.

[@TruckMaster]

Stay away from felpro 👍

[@chrisdeez2176]

Fel- pro has gone down hill in the last 8 yes so I only use mahle or oem for stuff now and don't have comebacks for gaskets leaking after short period .mahle or oem in my shop

[@zachvanhassl407]

Are the GM grade c head gaskets good or would you still recommend Mahle

[@TruckMaster]

Mahle, the gm stuff fails as well

[@zachvanhassl407]

@@TruckMaster awesome thank you. Keep up the hard work brother. I love your videos

[@MrJeepman01]

Thanks for all the great info!!! You make great content!

[@leeanderson8739]

What do you know about a l5p low coolant code that keeps coming up? I’ve drained coolant down a little and filled it up full with no change. The level doesn’t change on its own. And what can I do to make my 19 l5d have more power?

[@shanek6582]

Do you have antifreeze in your oil or oil in your antifreeze?

[@ng-ht1vx]

On the L5P, you have to replace the coolant reservoir.

[@leeanderson8739]

Nope

[@leeanderson8739]

Ok

[@jroch41]

Great info you’re sharing.

[@smokiethebear3334]

The diesel you paid for is about $ .45 /L cheaper then Ontario currently.

[@chuckabbate1264]

Do Duramax's have a lot of push rod issues?