-Episode 5- Replacing a stretched timing chain on a Toyota 4.0L V6 - P0016

[@randomstuffwithporgy3879]

Was quoted 2500 for parts and another 2500 for labor. Got all new oem parts for 1140. Thank you for taking the time to make this. It was very relaxing and enjoyable to watch. Kind of like the mechanics version of Bob Ross

[@chrissiri4225]

You rock. My FJ cruiser has the same motor and the timing cover was leaking. After watching your video, the chain was stretch and the tension was pushed out with the rings identical to your vehicle. I followed your video to the second and my truck it up and running better than ever with no oil leak. The coolant housing is leaking slight which is weird since I put a new oring in it. either way it is better than the oil leak and I have a new timing chain thanks to you!!. I would never want to do this again though. It took me over 20 hours but I am no mechanic only a DIY. either way it did save me around $2000.

[@GoTechTraining]

Hey Chris, that's amazing! Nice job! Mike Becker, Senior Instructor

[@justinkraus7784]

You're next level man. I really appreciate you taking the time to go into detail on this!!!!

[@GoTechTraining]

Hey Justin, thanks for watching!!! Mike Becker, Senior Technical Instructor

[@bobbyleos9480]

@@GoTechTraining I

[@bobbyleos9480]

Ok

[@LSmiata]

VERY Nice main timing chain explanation and install. Very much appreciated that you made a comment that it make take several revolutions of the crank to have the alignment of cam shaft links and crank link come back into alignment. Toyota and many other manufacturers are very good with visual assembly aids. In this video I was a little surprised that the crank link was the same color of the cams, but you did very well to balance the chain and orient correctly. Thank you for sharing your talent. P

[@GoTechTraining]

LSmiata, thanks for watching! It is possible that the OE chain would have had different color links. The chain used in this video was an aftermarket. If I get a customer that buys an OE chain i'll have to take a look! Mike Becker, Technical Services Instructor

[@Flyfeesh]

Happened upon this channel and so glad I did. There is infinite knowledge of Toyota/Lexus systems in here. Can’t wait to digest all of it!

[@deeprollingriver52]

I just had my timing belt changed at 178k miles. That was 6 years ago. I’m now at 204600 miles in 2024. I have a perfectly wonderful 2003 Toyota Highlander

[@johnpearce3208]

Thank you for all the tech testing procedures they help me to be a better mechanic all around good to have thank you. Now as far as the timing chain job I did one of them on the same 4.0 engine and unless I am starving I won't do another one what a job wow thank you again John p

[@Jlb-fz7nl]

I did a cover on this version of the 4.0 and I don’t remember taking the oil pan off/ I do remember removing the 2 studs from the lower part of the block that protruded through the cover. I remember cleaning it very well and making sure no dirt got into the oil pan

[@wtfman5313]

I really enjoyed this series of videos because you are so thorough. Thank you for taking the time to make them. Cheers!

[@GoTechTraining]

Hey Hoopty_Medic, thanks for watching! I make em so you guys can watch em'! You keep watching, I'll keep making videos! :) Mike Becker, Technical Services Instructor

[@PaulBurns1]

Those red/yellow links need to be lined up with the phaser dot. You have to turn the engine over until they all line up can take a dozen or more revolutions till they do.

[@richardtruesdell8289]

What kind of automotive shop do you work in where antifreeze and oil are not allowed to be on the floor???

[@GoTechTraining]

A very very unique one. It's more of a filming studio than a shop. Mike Becker, Senior Instructor

[@arnarmar75]

Thank you Mike for the detailed and valuable information you give us in all your videos. You are doing a really good job.Greetings from Iceland.

[@GoTechTraining]

Hey Arnar, thanks! How are things in Iceland? Mike Becker, Technical Services Instructor

[@fomocotech]

Awesome video man. Thanks for taking the time to make it

[@GoTechTraining]

Thanks for taking the time to watch it Tom! Glad you enjoyed it! MIke Becker, Technical Services Instructor

[@bczygan]

I like the happy music while fishing a part out of the oil pan!

[@GoTechTraining]

Hey William, glad you liked it! I needed something to cover up the frustrated profanities spewing from my mouth :) Mike Becker, Senior Technical Instructor

[@baxrok2.]

Nice work Mike. Great tips along the way. Some lucky DIYers will now have a sweet 4.0 chain swap video for reference. Looking forward the the final analysis. Thanks!

[@GoTechTraining]

Thanks John, I'm hoping they will use it as reference. It's really not a horrible job to do. Mike Becker, Technical Services Instructor

[@bernardaflores1720]

The beauty of new tech timing chains, VVT's etc. I am keeping my old fashion timing belt and no VVT's!

[@chriscadman5715]

Nice work! Enjoyed the video! One thing I would add is it's probably a good idea to soak the chains in a small tub of motor oil. That keeps them from galling on first start up and while waiting to get oil bathed while the engine runs.

[@motorcyclesandridingfree2899]

That's a great setup there and I noticed you had an engine sitting there in the corner. Another great video Mike you are on a roll. I sent you an email about the known good few days ago. For some reason my business account didn't show the video was up. I wish I had a garage that size I do my work mostly outside when I'm working for my business otherwise in the shop for the boss. Thanks for doing this series Robinson's Auto Diagnostics

[@GoTechTraining]

Thanks, it works for me at home! I can't not get my hands dirty every once in a while. That is a 2.5l Ford motor. Same exact problem that Eric O's Escape had. Burned valve on cylinder 3. I chose to replace it with a 80k junkyard engine. I wanted the old one to hopefully do a class on it at some point :) I did get your email. I'll get you that known good at some point next week. I have to find my flash drive that has them on. I changed laptops recently and they aren't on it. Mike Becker, Technical Services Instructor

[@motorcyclesandridingfree2899]

Wells Vehicle Electronics Appreciate it and yeah I have seen that problem in the transits as well with the 2.5 apparently it's common for #3 cylinder which I find odd but that's the one I see with bad valves.

[@2secondslater]

Nice vid, Mike. Shows the complexity of mechanical repair on a relatively modern day engine.

[@GoTechTraining]

Thanks Jake! Glad you liked the vid. Mike Becker, Senior Technical Instructor

[@elonsus9747]

This engine is pretty easy to do maintenance on. The single VVTI engines anyways, especially with oil changes. Good engine and good job.

[@jaynoypi7015]

Can the chain tensioner be replace without removing the head ?

[@GoTechTraining]

Hi Jay, The cylinder head does not have to be removed, the front timing cover must be removed to replace the timing chain tensioner . Hope this helps! Thanks for watching. Ryan W Technical Instructor

[@ericnorton8664]

Thank you very much mike, for taking the time to respond !

[@balisongman07]

How does this have only 49k views. Brother you are under appreciated. Thank you for this video!

[@GoTechTraining]

Hey man, can you please edit your comment to remove the profanity. I appreciate the comment, just trying to keep the channel as clean as possible! Thanks :) Mike Becker, Senior Technical Instructor

[@admantiom1848]

Thanks for taking the time to explain in detail.

[@GoTechTraining]

Thanks for watching Admantiom! Mike Becker, Technical Services Instructor

[@GRUSSNewton]

Watched this over 2 nights and I’m very impressed, not only with your mechanical skills but your camera work. Some really good quality footage you got, felt like I was there stood at the side of the car! Looking forward to the final part :-)

[@GoTechTraining]

Hey, that's great! That was the goal. Show it how I see it. Thanks for watching! Mike Becker, Technical Services Instructor

[@riclopez1627]

Great video, Question: my kid ran her 05 4runner out if oil. Not sure for how long. But it started to throw P0345 and P0345. After a full oil change service I pulled both cam sensors. The driver side had a thin groove. Seeing your video it is clearly being hit by the sensor wheel on front of crank sprocket as pointed out on video 33:24. After replacing both sensors one of the two codes went away. The other im guessing is that side with the damaged sensor. Could that wheel pickup have become loose due to no oil pressure? Im dreading doing this service. Albeit pretty mechanically inclined. Any insight is appreciated thank you

[@lukestoyz]

Tip:On the small new cam chains, the painted timing marks should face backwards so that you can see both marks after everything is installed. If installed facing forward you will only be able to see the exhaust cam chain mark. I enjoyed your well documented video, thanks for sharing

[@GoTechTraining]

Hey Luke, thanks for watching! Great tip for people doing this for the first time. Thanks! Mike Becker, Senior Technical Instructor

[@FishHeadsIV]

How did you manage removing the camshaft bolt with the car on the ground? And is there a pdf of what you were referencing for the instructions?

[@robertnessa7984]

I have 2007 FJ that just came home with this error code. No abnormal running but as you clearly explained this P0016 code is not going to go away. Disappointed with Toyota as only 140,000 miles and always maintained well

[@GoTechTraining]

Ugh Robert, sorry to hear that! If it's any consolation, once the job is done you should be set for the rest of the vehicles life...as long as you put in good parts. Mike Becker, Senior Technical Instructor

[@robertnessa7984]

So I cleared the code a week ago and code hasn’t reappeared. Plan on doing a Seafoam treatment with hopes that helps. Car has been well maintained and always used AmsOil. Vehicular runs strong and doesn’t miss or hesitate. Repair shop quoting est 18 hours because of oil pan removal.

[@ideath173]

Great video, but that chain was spot on,--perfectly in range for normal chain stretch. Been doing these for over 10 years. Still a great video.

[@GoTechTraining]

Hey William, thanks for watching. I'm confused. If the chain were spot on why was the check engine light on before and off after? Mike Becker, Senior Technical Instructor

[@ideath173]

Code?

[@GoTechTraining]

P0016 Mike Becker, Senior Technical Instructor

[@nickayivor8432]

Good afternoon ✨ Mike Becker Great tutorial thank you very much helpful video thanks 👍 From Nick Ayivor from London England UK 🇬🇧

[@joshbeletz6157]

Any other video explanation on how to get the upper intake off at about 8:30? Just speeds up and no detailed info. Cant seem to get mine off

[@SigmundQFreud]

Okay. Im motivated now to get back to work on my 86 22r.

[@SFCNS]

Best repair video EVER :)

[@GoTechTraining]

Hey Matt, best comment EVER! ;) Mike Becker, Senior Technical Instructor

[@SunnyLogan-i8m]

I have the same engine and got a P0016 code. I replaced the sensor but no luck, I removed the sensor and used my bore scope and could clearly see the exhaust sprocket phaser was 80% gone. I opened the small inspection door below it and just so happened this broken phaser was hanging on a bolt so I fished it out - LUCKY!! Do you know if this sprocket can be replaced by just removing the valve cover and not taking the entire timing chain cover out?

[@prevost8686]

Honda K- engines have had this issue particularly with customers that followed Honda’s 10K oil change interval. That Yoda has also experienced extended oil change intervals based on the varnish I see. Oil & filters are cheap... even if you use premium quality oils & filters.

[@GoTechTraining]

Hey Wayne, could not agree more! Oil and filters are the cheap and easy way to go. Mike Becker, Senior Technical Instructor

[@ttran8538]

Cheap but why 10k? Should change at 5k even it's synthetic.

[@stephencook7337]

Excellent video. I’m stuck with a p0017 code on a 2011 Corolla. I understand the repair is similar...

[@GoTechTraining]

Hey Stephen, thank you! Yes, in principle they are similar. Mike Becker, Senior Technical Instructor

[@markzapf7633]

Hi I’m just wondering if you have to replace the two big gears at the top of the cam. Is it something you could look at it inspected if they look OK just use those or do they need to be automatically swapped out with the chain? Thank you very much for your help. Mark

[@markzapf7633]

Can I ask is it really necessary to change the chains if they are just stretched? Outside of the annoying code light can’t you still drive the vehicle with just a stretched chain??? Thanks mark

[@GoTechTraining]

Hey Mark, that's a great question. Chain stretch is chain wear, eventually that wear will become to great for the tensioner to take up the slack. When that happens the chain will become loose and likely jump a tooth/teeth. If this happens, many engines will slap the pistons into the valves causing catastrophic damage. So, in short the trouble code is a warning to IMPENDING DOOOM within the engine lol 😆 ~Mike

[@user-ip7kz6oy5t]

It would be great if you could be more specific on model year and engine. I have a serpentine belt, not a timing chain on my 04' 4Runner V6 4WD.

[@3lrancho]

FML. Have a p0012 code after a head gasket replacement. Replaced ocv already.

[@GoTechTraining]

That's no good!!! Think you might have timing the chain/belt wrong? Mike Becker, Senior Technical Instructor

[@3lrancho]

@@GoTechTraining the mechanic said it was correct? But well I wasn't there when he did it. He's supposed to open it up again. Do u have any other tips or pointers? I have some pictures if you would like to see?

[@billlincoln6087]

Great video. very good craftsmanship with technological knowledge.

[@GoTechTraining]

Thanks Bill, appreciate the kind words!!! Mike Becker, Senior Technical Instructor

[@jeepchievous]

Hey Vato gracias por el video. Double checking and confirming the details. Video is pretty much Firme carnal.

[@petar443]

Great video.Now to my question.I'm going to change the timing chain kit on Kia inline 4 cylinder 2.0 16v "G4KA" engine with phaser on the intake cam only.I'm confident the job will work well.My only doubt is about the so called "slack".I never did a timing belt/chain before.Where should i have the slack before i releas the tensioner pin -- between CAM2 and CRANK on the chain or between CRANK and CAM1 on the chain(where the tensioner is).It's a pretty standard inline 4 cylinder with 2 camshafts engine.

[@cangler]

Amazing knowledge and expertise on this trade, really impressed. I have the exact same vehicle with just under 150K miles, been getting oil changes every 6-7K miles, full synthetic oil, hopefully I never see this kind of issue with my 4R, seems like lot of labor cost!

[@GoTechTraining]

Hey Reg Park, thanks for watching! I hope you never run into issues as well. This was a big job. Keep changing that oil! :) Mike Becker, Senior Technical Services Instructor

[@smokestack9795]

Reg Park .....my 2007 4Runner SR5 manual recommends oil change every 5000 miles and use conventional 5-30 oil. That’s what I do, what does your manual recommend? That’s what you should go by.

[@ttran8538]

You will, because 6-7k is not healthy. 3-5k seem normally service

[@marcosbravo87]

My friend for you to do 6 to 7 k you will need redline,amsoil or ravenol oil otherwise you will do this job .Try Mobil 1 every 4K and you won’t have a problem

[@ozzstars_cars]

At the beginning of the video you were wearing the loosest paint stained yoga pants Kohls sells. I wasn't jealous.lol Nice job with the details on the timing chain. You do a few of them on the same car and it becomes cake, a real learning curve. On to episode 6 now for me and another cold beer. Cheers

[@rentacop88]

Outstanding job, excellent video, I learned more today than on my LACTT classes ( mechanic auto 🚘 classes)

[@NewLevelAuto]

Even when it's being sped up I still had to watch in 2x 😛

[@GoTechTraining]

When I work at home, I work at a leisurely pace! :)

[@tam1381]

Now thats comedy....lmao

[@frankmtech3766]

New Level Auto What's up Keith!😉👍👍

[@PineHollowAutoDiagnostics]

No one else can keep up with the Staten Island pace lol

[@richardcranium5839]

too much dd cofee?lol

[@cracky_wainwright]

I'm not a mechanic, so forgive me if this question should be obvious: I understand from your explanation that the chain stretched and the tensioner compensated as far as it could go, but *what caused the chain to stretch in the first place?* I'm trying to avoid whatever causes a major $$$$ repair like this for my 4.0 V6 Tacoma. Thanks.

[@GoTechTraining]

Hey Michael, no need to justify your question...it's a good one! Stretch is kind of the slang term of what happens with the chain. In all reality it is actually wearing. This wear makes it longer, hence "stretch". 2 major factors play into this. Oil change maintenance and OEM timing system design and components. Some vehicles are just prone for chains...looking at you GM 3.6L and Ford 3.5L Eco-Boost! Best thing you can do is keep your oil clean. Regular intervals, 3-5000 miles depending on driving conditions. Mike Becker, Senior Instructor

[@dylanrapone5366]

@@GoTechTraining youre not wrong about the 3.5s we have multiple every week come in with stretched chains. working on one right now that was 30 degrees of timing, should be low low around 0.

[@29auto30]

Thanks for taking the time to make this video,about what did it cost for parts? What is the advantage of double over head cam engines? HP?

[@GoTechTraining]

Hey 29 Auto, it depends on where you get parts from. I'm not going to discuss pricing on here. Best bet is to check with your local store. There are tons of advantages to DOHC. Power, efficiency, emissions...etc. Mike Becker, Technical Services Instructor

[@fbrewx2560]

its called meeting government regulations. The bane of humanity

[@thehardcoregamer6458]

What's up with antifreeze going into drainage?

[@jasonfancey472]

So question.....what could of happened if you did not retrieve that piece if tensioner.?

[@capt251978]

I've done at least 10 of these over the years. Very common. the tensioner over extended is the give away.

[@GoTechTraining]

So, Capt251975, what is your thought on the root cause of the issue? Poor oil change maintenance? Mike Becker, Technical Services Instructor

[@capt251978]

No real verification from Toyota on the root cause. If I were to venture a guess it would be just poor quality of the chain design. I've seen it on well and poorly maintained vehicles. Only seems to happen on 4WD models... Tacoma and FJ Cruiser. I guess when subjected to higher engine loads via pulling a trailer or offroad use.

[@elonsus9747]

@@capt251978 Any experience with VQ engines? They seem to have timing chain problems too.

[@capt251978]

Karma Nv VQ?

[@elonsus9747]

@@capt251978 Nissan V6.

[@robertskillings864]

Is a 2010 4runner 4.0L V6 a belt or chain? Looking at buying one and there all high 150k plus miles. Can't find any video's or info on them. It will need replaced if not already. Please reply

[@GoTechTraining]

Robert, the 2010 does show to use a chain. Mike Becker, Senior Technical Instructor

[@KamakazieGames]

Was there still slack in the chain after you replaced?

[@skhochay]

good job, I like people with a patience

[@GoTechTraining]

Hey Sergo, thanks! I like fooling people into thinking I have patience ;) I would not call myself a patient person by any means, but thanks anyway! Mike Becker, Senior Technical Instructor

[@willielittle6021]

Great video of how to do it at what mileage does Toyota recommend you replace the chain guides and tensioners only 4.0 I'm getting ready to purchase a 2010 Tacoma TRD sport double cab 6 foot bed for will drive and it's got 89000 miles on it I was just wondering what Toyota recommends what miles to change this at

[@GoTechTraining]

Hey Willie, according to Toyota the timing chain is not a maintenance item. It should last the life of the vehicle. I believe it would/does as long as the oil changes were done at the correct intervals. The only time you should have to go in and replace the chain and tensioner is in the event of a failure/check engine light. Mike Becker, Senior Technical Instructor

[@5karpist]

Very impressive! You may want to start with disconnecting battery.

[@marknagy5892]

Alot of work no joke !

[@GoTechTraining]

Hey Mark, thanks for watching! Mike Becker, Senior Instructor

[@wilsontran1943]

How they charge change new head gasket 05 Toyota runner v6 4l please let me know thanks

[@ifixedit7909]

Great video, just wondering, how many miles did the car have before needing chains? And did the engine have a code also? Thanks

[@ericnorton8664]

I'm curious how many miles were on the odometer at the time of failure ?

[@GoTechTraining]

Eric, I know I mention it in the first video in this series...if memory serves correct I think it was about 140k on this 4.0L. Mike Becker, Senior Technical Instructor

[@zachattackhzachattackh7054]

NGK Technical Training the funny thing is Toyota doesn’t recommend a timing chain replacement till 300,000 miles on the 1gr-fr engine

[@mech4061]

@@zachattackhzachattackh7054 my 2007 1GR-FE 4.0 is currently at 241,000 Miles with no issues. original timing chain!!! It's all about maintenance. keeping those oil change intervals at the manufacturer's recommendations. Fingers are crossed! hopefully mine will go 300,000 or more.

[@prevost8686]

ken H It’s also reliant upon the quality of the oil. FJ uses the same basic engine and as of 2008 they still required SF grade oil for them. SF has a significantly higher level of zinc/phos than current oils. The problem is finding SF oils. The only mass produced one I know of is Royal Purple HPS . I’m sure there are others. Mobil 1 0W40 European Car formation has more zinc than their other variants.

[@brentboswell1294]

How many miles on the engine? One thing I noticed on the teardown is that the left cylinder bank looks a lot dirtier than the right cylinder bank...I would expect them to look pretty much the same!

[@GoTechTraining]

Hey Brent, around 140k on this one. The left bank does look slightly dirtier. I would expect the same as well. I think this entire problem stems from a lack of maintenance. Oil change interval was too long with the previous owner I believe. MIke Becker, Technical Services Instructor

[@Brian-th4qn]

confused about your video. You stated at 27:29 that the cam should line in the center of the two phaser marks. But at 1:02:35 you put it back together like it was before. did it run ok afterwards even though time was slightly off? Still a great vid though.

[@souperdave2009]

Lmao

[@aroldomacario3103]

I think your mark from the cranck move because you didn’t release the pin from the tensioner.

[@MrPami9899]

It is crazy how most engine have similar design nowadays, remind me of the nissan / infiniti 3.5 and ford 3.5 ecoboost 3.7

[@GoTechTraining]

Today's engines really are all very similar in design. I feel like newer engines are easier to work on that only 90's or early 2000's motors. What do you think? Mike Becker, Technical Services Instructor

[@MrPami9899]

Wells Vehicle Electronics the nissan 3.5 came out early 2000,I had a 01 nissan pathfinder, it is dohc ,vvt,and water pump is driven by the timing chain, lol

[@GoTechTraining]

Good stuff. Those older 3.5's are good engines...except, aren't those the ones with head gasket issues? Where they leak coolant externally on the back of the head? Mike Becker, Technical Services Instructor

[@MrPami9899]

Wells Vehicle Electronics but they are thirsty as Hell, lol well built, burn little bit of oil occasionally

[@GoTechTraining]

Thirsty but they put out good power...so it's a good trade off? Better than being thirsty like a 4.0L in a Ford that is lacking power! Mike Becker, Technical Services Instructor

[@tannersalem2585]

I have a 05 Tacoma with the 1gr-fe timing chain seems stretched timing is the same as this video before repair. But I'm not getting a p0016 or p0018 I'm getting misfires on bank 1. Have you seen a stretched chain that has misfires but no timing code? Thanks

[@GoTechTraining]

Hey Tanner, that seems unlikely. Generally the timing correlation code sets before a misfire. I do suppose its possible...but I would probably take a look at the VVT solenoid/phaser for that bank. Could be your issue if it's a single bank of misfires with no correlation codes. Mike Becker, Senior Technical Instructor

[@royabadis3714]

Good day! Just wanna ask if you can give me the torque specs on all those bolts for this entire job. Thanks a lot.

[@GoTechTraining]

Roy, I can send you the torque chart, sure. Shoot me out an email to me and I'll reply with it. [e-mail] Mike Becker, Senior Technical Instructor

[@juanrodriguez-ry6yt]

so now we have new chains and some new gears the gears on the intake were not replaced

[@GoTechTraining]

No, the cam phasers were not replaced. I cleaned them out, but they were in good shape. Mike Becker, Technical Services Instructor

[@daviddeguara1863]

well done very professional

[@GoTechTraining]

Thanks for watching! Ryan W, Technical Instructor

[@franciscoher70]

2014 dodge avenger 2.4 sets p0016 only when is on idle only what it can be the problem???? thanks!!

[@GoTechTraining]

Could be something with the timing. Hows the oil condition/level? Mike Becker, Senior Technical Instructor

[@franciscoher70]

NGK Technical Training i change the oil and filter and still same

[@GoTechTraining]

Ok, could be timing then. You'd want to verify that next. Mike Becker, Senior Technical Instructor

[@franciscoher70]

thanks i’ll check that out 🤝

[@charliem7545]

Best repair video I've ever seen. I have one question, though - what do you use to hold the crankshaft pulley in place while loosening the pulley set bolt (and tightening it upon reassembly)?? I'm struggling to get mine off and don't want to damage the pulley doing so.

[@GoTechTraining]

Hey Charlie, thanks for watching!! I didn't use anything to hold it in place. The crank pulley should stay steady due to the compression inside the cylinders. You should be able to get it loose but it requires an impact. You most likely won't get it with a rachet. Mike Becker, Senior Technical Instructor

[@charliem7545]

@@GoTechTraining Good to know! Thanks for the reply. Since I've already taken the spark plugs out, I'd imagine that I've lost compression and wouldnt achieve that again just by plugging them back in...

[@GoTechTraining]

Charlie, throw the plugs back in, tighten them down and then the motor wont spin as easy. I bet you'll get the pulley off that way. Mike Becker, Senior Technical Instructor

[@2secondslater]

Another method for a really tight crank pulley bolt is to use a breaker bar and socket on the crank pulley bolt and having the breaker bar up against a solid part of the vehicle i.e. subframe rail, and then using the starter motor to crank the engine for a short period to loosen the crank bolt. Note that this method comes with risk of damage to vehicle components such as transmission cooler lines, wiring, body or whatever else could be in the way, caution and preparation need to be used, you also need to be familiar with the vehicle i.e. does the crankshaft pulley bolt have a left hand thread. IT ALSO COMES WITH THE RISK OF INJURY IF YOU DO NOT KNOW WHAT YOU ARE DOING!!! I have used this method too many times to list in the field when no access to air, impact tools or a method to hold the crankshaft from turning is available, without problems. Care must be taken!

[@jessicaoswell7361]

How many miles we're on this? Was it throwing a cam or crank code?

[@GoTechTraining]

Hi Jessica, I believe well over 100,000 miles, It was throwing a cam/crank correlation code P0016 Thanks for checking out the video! ~Ryan

[@jessicaoswell7361]

Geez mine just rolled over 300K. I wasn't expecting yours to have that low of mileage. Anything in particular cause this I have never had this code.

[@GoTechTraining]

Poor maintained engine (oil changes) is usually the cause. If you keep good clean oil in your vehicle, it may run for quite a while without developing chain stretch. ~Ryan

[@hondaftwg9543]

Any links for the timing chain replacement kit? i cant find any reputable sources!

[@GoTechTraining]

Hey HondaFTW G, thanks for watching! I purchased my kit through RockAuto. Mike Becker, Senior Instructor

[@xanderl4651]

Thanks for making this video! I was wondering if i could do it without taking off the oil pan. Nice!

[@GoTechTraining]

Hey Xander, you're welcome! Glad you've found this useful! Mike Becker, Senior Instructor

[@juanrodriguez-ry6yt]

so the sprocket part is part of phasers i know phasers cost is about 900.dollars

[@GoTechTraining]

Juan, yes, the sprocket and phaser is one piece. You can disassemble them and clean and inspect them. Mike Becker, Technical Services Instructor

[@callofdutyguy9]

Do u remember what size wrench to hold the camshaft hex?

[@GoTechTraining]

Hey, sorry I do not. Likely a 21 or 22mm would be my guesstimate. Mike Becker, Senior Instructor

[@vettepwr23]

Great video! I just stumbled across this as I am planning to replace the head gaskets on my 2008 4.0L V6 4Runner. I bought the car with 206k miles and it now has 295k. The engine has never shown any engine codes while I have owned it. Recently it started loosing coolant with no visible leaks but after inspecting the cylinders and pressurizing the cooling system, I found #4 and #6 to be leaking coolant. The car is still running fine with no check engine light. Aside from replacing the head gaskets, do you think I should replace any other components while I am in there? E.g. timing chain, etc. ? Thanks!

[@danieljohn589]

Would you consider the internal of that motor to be in good condition? My 1GRFE has 120k and no where near the level of varnish and burnt spots on the valvetrain and so forth.

[@cankiremit6600]

hey man how long did this take you in your garage? thanks brother

[@tam1381]

Great series Mike. Thanks.

[@GoTechTraining]

Thanks Tam! Glad you are enjoyin it man! Mike Becker, Technical Services Instructor

[@timparker3272]

Explains everything very well, easy to understand and follow..... What timing chain kit, tensioners, etc., did you use, off brand or OEM?

[@GoTechTraining]

Hey Tim, thank you very much! This customer chose to go with aftermarket parts on here. Mike Becker, Senior Instructor

[@tylerpowell5801]

Great video, Mike. Thank you for taking the time to make it. I am current throwing a p0012 code on my 05 4Runner 4.0L. Has just shy of 250,000 miles on it. At the end of this video you state it was throwing a p0016 code. Question is, would the fix be the same for both of these codes? Trying to save some $ and capable of doing the labor. Just don’t have the tools for a sure fire diagnosis. Thanks!

[@GoTechTraining]

Hey Tyler, thanks!!! So a P0012 could be related to lack of oil or stuck up VVT solenoid. Mike Becker, Senior Technical Instructor

[@tylerpowell5801]

NGK Technical Training- thank you! I did have a small oil leak from the passenger side valve cover a couple months back that I fixed. So that may have thrown the code. CEL is still on so I will look into the VVT solenoid. Thanks again

[@mathewboyer5141]

I know this is an old video but what size open end wrench is used to hold the cam when torquing the cam sprockets?

[@GoTechTraining]

Hey Mathew, I don't remember. Maybe 21mm? Otherwise and adjustable wrench would work too. Mike Becker, Senior Technical Instructor

[@bonzaitomato]

@@GoTechTraining its 23mm or a 15/16 will also work

[@brett5287]

I'm doing this exact job right now. At 1:27:49, while you are doing test rotations, I see both the chain going around the idler sprocket suddenly slacken, as well as watch the no.1 tensioner move in and out throughout the rotation. Are both these things normal? This is my first timing chain job. I expected the chain to stay evenly taut throughout the rotations, however just after passing TDC, the chain slackens around the idler sprocket just like it does in yours. I half expect it will be slapping against those guides whilst I'm driving. Any guidance would be appreciated! Great video, been super helpful.

[@GoTechTraining]

Hey Brett, the tensioners aren't pressurized at that point. They are just using spring tension. Once the engine is started they fill with oil pressure and hold the chain tight. Hope you get the job done successfully! Mike Becker, Senior Instructor

[@brett5287]

GoTech oh wow! I had no idea, that’s amazing. Thanks so much for the quick reply!

[@montero6939]

Does my 2006 Toyota tundra v6 4.0 liter.have a timing belt or chain?

[@GoTechTraining]

The 4.0L is a chain motor. Mike Becker, Senior Technical Instructor

[@tonycordova9702]

Great Job Mike. Just one enquiry: Did you put an OEM timign chain or an aftermarket piece? If coul be an aftermarket part, wich one would you recommend. I have the same model but from a 2003 Year. Kind Regards

[@GoTechTraining]

Hey Antony, thanks!!! I did use an aftermarket chain in this. Cost was the main driving factor. I do not have any recommendations besides to say that you should buy one from a reputable manufacturer. Thanks for watching! Mike Becker, Technical Services Instructor

[@cory8791]

How do you tell if the cam phaser are still good? Great vid!!!! Thanks for posting!!!

[@GoTechTraining]

Cory, in this case with this code there is no way the phaser could cause the issue. If you're dealing with a different code and wanting to verify phaser operation you could drive the phasers with a scan tool and see if the engine changes. You would then want to look at phaser position desired vs actual. Generally the phasers are ok, it's the oil flow or oil control (VVT) solenoid that is the issue. Mike Becker, Senior Technical Instructor

[@davidessien5465]

On Saturday 16/7/2022 about 5pm a client called me to his abode. When I got there he told me that he observed when he was about to drive into his compound that oil was leaking in his car. Although, it took me some minutes to troubleshoot the problem because the oil spattered excessively to many accessories of the car like alternator, power steering pump, fan belt, TPS, AC compressor, etc. I searched for the leak and finally saw what was causing it. I noticed that it was because of the CKP oil seal at the pulley side/front of engine. It was late hence auto parts store closed that was why I didn't replace the seal that day but encouraged them not to drive the car until I replace the seal. On Monday 18/7/2022 I changed the seal and the leaking stopped and the idled fine but I only observed that few minutes to avoid catastrophic outcome to the engine because the engine oil level was low. After replacement of the seal the fan belt cutoff and I replaced it as well. They didn't drive the car until Tuesday when the went to the replace the oil. But before they moved they called that the whole car was vibrating. I was unable to reach out to them so I told them I will meet them on Wednesday 20/7/2022. I got there yesterday as promised and noticed a severe vibration at idle which wasn't there when I left on Monday. I scanned the car and retrieved some codes that I will upload. Among those codes, I was particularly focused on the P0016, P0113, P0123, and P2135 although I verified the ignition codes and saw that it fired very fine. As a result, I cleaned the CMP sensor of the 2 banks and installed them back but to no prevail, I still noticed a vibration. I pulled the CMP sensor again within 2 minutes of idling and noticed that it was dirty again. This time I had to pull VVTI solenoid valve of both banks alongside the CMP sensor and cleaned them. In addition, I used a very clean dry cloth and insert into the CMP sensor hole to properly clean the inside of the engine. In the process, I also noticed that the injection head where the TPS sensor is tightened was very dirty as when a carbon and oil are mixed together so I cleaned that too using a tooth brush. At last, when I put everything back to it's respective places the idle was very nice because the car didn't vibrate again! However, there is a problem that I want you to help me out with. It's a high rev in RPM to about 1.4 at idle. I Before I left there yesterday I scanned the car again and found only the P0123 and P2135. Please note that this two codes appeared only after cleaning the CMP sensor, VVT solenoid valve and the injection head. It didn't appear before the cleaning of those accessories. When I started the car it rev high from about 1.25 to 1.4 RPM and remains there. The RPM doesn't go up and down. When I accelerated the car it rev very fine. I also noticed that the TPS connector was slightly broken, it didn't fit in very well and didn't hear a snap sound when connected to the TPS module. But whenever I pulled the TPS connector completely out when the car was idling there was a great reduction in RPM as if the car wants to stall so I immediately connect it back slightly and noticed that the RPM goes down and remains at 1000 RPM. The car owner even noticed the reduction in RPM, stood up and moved to me and said that that's the way the car should idle. But if is still connected at that place and switch off the car it idles to 1.4 RPM and remains there until I repeat the unplugging of the TPS connector process. I tested the connector with my test light and noticed 2 ground out of the 6pins (one of the ground was very dim the other was bright) at the pin connector that illuminated the dim light when tester was at battery positive. I also noticed a dim light when I checked for current with my test light now hucked up to ground and ignition switch activated to ON position. Presently, the car idling don't want to reduce to 1000 RPM and also the only codes that doesn't want to go out are: P0121, P0122, P0123 and P2135. In addition, the tapping sound from the right bank doesn't want to go out. Please help me, how do I permanently solve this car problems?

[@edriquez57]

Hard to believe those chains were so stretched . I thought they would last a lot longer. I had a 1980 Toyota Pickup that had over 400, 000 on it before the transmission went out , and it also ran better then the new six cylinder Toyota I was considering buying before it died .that was a good old truck.

[@brandonjohnson9084]

Hey I'm about to do this on my 2007 FJ cruiser (same engine, I believe). Are there any gaskets you need to replace on reassembly? I'm trying to have everything ordered before I tear it down.

[@GoTechTraining]

Hey Brandon, it's been quite a while since I did this job. Intake and valve cover gaskets for sure. Not sure what else from there anymore. Mike Becker, Senior Instructor

[@xian4000]

@@GoTechTraining a mechanic in town just told me that for my '07 FJ, the axle and oil pan had to be dropped. You didn't do that in the video for the Tacoma. Is there something different about the FJ, or was he mistaken?

[@edwinestrada5555]

What was the reason of changing the timing chain?

[@1911Breeze]

NGK, I need your advice. I have a fellow working on a blow head gasket. After he repaired the head, he didn’t put the timing back on properly. So the engine would not crank. We are at a stand still, now the compression is low. He think the chain is still on wrong. Can you please give me a hand.

[@GoTechTraining]

Hey 1911Breeze, When you say the engine won't crank, you mean it won't even turn over? Timing won't stop the engine from cranking over...unless the pistons are hitting the valves. If you mean it won't start up, well then, yes, you could have the timing off on there. Mike Becker, Senior Technical Instructor

[@curtcoulson1010]

what is the service on these? how many miles was on this motor?

[@wazowskij8157]

Hey I understand you did this job a long time ago. But is there any chance you know what book you used to guide you with this job? Thank you.

[@jgeorges3061]

awesome episodes with excellent info one question when u look at cam or krank signal is the signal will be zero to 5 volt or will be between zero and 5 v lets say zero to 2.6 v and so on. thankyou and cheeeers Mike.

[@GoTechTraining]

J Georges, thanks!! It really depends on the car. A cam sensor is generally a 0-5 volt wave, and crank signals can go either way. Analog, or a 5v signal. There may also be some that are on 12v. Look at a diagram before scoping. That should help! Mike Becker, Technical Services Instructor

[@TheXxxcbr929rr]

i am about to do this job on my 2005 Tacoma. Should I be worried about replacing the vvt cam phasers as well? The dealer listed them as an item they were going to change. Do the sprockets wear over time or just the chain?

[@GoTechTraining]

Hey man, the phasers add a pretty significant cost...If you are planning to keep the vehicle long term I'd suggest doing them...why not, right? you're already that far into the engine, might as well replace everything that's there. You may want to do the oil pump right away too. I did not replace them on this engine to help control cost and the vehicle is still on the road today problem free. Mike Becker, Senior Technical Instructor

[@TheXxxcbr929rr]

Does the oil pump replacement add alot of extra work if its already torn down for the timing set? It's a 4wd if that matters.

[@GoTechTraining]

The oil pump on these 4.0L's is mounted into the front cover. It's not a ton of extra work but it will of course add some cost to the job. Mike Becker, Senior Technical Instructor

[@TheXxxcbr929rr]

Thanks for the info Mike. One last question for you... i promise. The cam sprocket bolts, are the torque to yield or do they get reused? Thanks!

[@GoTechTraining]

Hey, sorry was out of the office for a week...Looking in service info it does not say the bolt needs to be discarded...so i'm going to go with No, not torque to yield on that one. Mike Becker, Senior Technical Instructor

[@jaybuss6105]

Ok I need video of changing the crankshaft sensor in the same truck 2005 Toyota 4 runner 4.0 Vvti motor help lol

[@GoTechTraining]

Jay, that's not a fun one. It's behind the alternator. Book time is 2.4 hours. Alternator needs to be removed to get to it :( Mike Becker, Senior Instructor

[@jaybuss6105]

Thanks

[@jaybuss6105]

Are you sure about that I have the vvti 4.0 and looks like the one in this video and seems to be behind the ac compressor

[@jaybuss6105]

GoTech yes question I changed it out ok I’ll start from what I started with I have codes for camshafts sensors did them and also said crank sensor also so did that and yea took about hour 10 min all done perfect double checked everything and no it’s all back together won’t start anything I can check before I pull it all back part to see if sensors bad and yes it was running before work so yea damn lol it ran but ran crappy at certain rpms like 1400 to 2100 all shops even Toyota told me 1k to fix and it’s was sensor well I’m not dumb just disable single father of 3 boys 7,12,17 and I can’t afford that and I’m pretty smart with the older cars have some knowledge of new stuff most of it not all well you see I’m stuck I’m not sure it’s that sensor I think something else has to be done to restart computer like crank calibration maybe battery has been off now 2 days so so can you give me some info to help me please like in need ASAP if you can thanks Jay

[@GoTechTraining]

Jay, that's not good!!! Start by hooking hooking the battery back up and checking the system for codes. You're certain that you put the right part numbers in? Mike Becker, Senior Technical Instructor

[@raulporras6239]

🔧Thanks you 🛠so much very 🎥informative ⚙️video⚙️

[@GoTechTraining]

Hey Raul, thanks for watching! Mike Becker, Senior Instructor

[@MooseKnuckleMike]

What did that have on it as far as miles before that happened?

[@HomieHektor]

Very clean and thorough video. Those are some sick ass cameras you got there, you should do a giveaway ;)

[@GoTechTraining]

Thanks man! They are great cameras...way to expensive for a giveaway! :) Mike Becker, Technical Services Instructor

[@HomieHektor]

Wells Vehicle Electronics I know, I was just kidding, they look very expensive. What editing software do you use? 🎥

[@GoTechTraining]

They are Sony Pxw-x160's. Solid Cameras...and I use Adobe Premiere for my editing. Mike Becker, Technical Services Instructor