Stop the shuddering on a 2016 GMC Sierra / Silverado with the 8L90 Transmission. 

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This worked on my 2015 gmc Yukon xl denali, it has a 6L80 ,I bought this exact oil on Amazon each case around 54 dlls and man am I happy, noise gone and all is well with my baby girl. Thank u very much

Well, I finally got around to doing it. Followed your video to the "T" and the shudder is completely gone. Runs like it did when I bought it and the shuddering was absolutely horrible. Thank you very much for the video...In case any other readers are curious, I have a 2016 Chevy Silverado LTZ (5.3L, V8).. The transmission filter and amount of transmission fluid to put back inside the transmission is the EXACT amount as shown in this video...

thanks for this video, i saw last night and the first thing i did this morning was follow step by step and now MY TRUCK BACK TO LIFE!! no SHUDDER!!

Good video and thorough explanation of everything. My dealer was going to charge me for this service so I had my local mechanic who I trust perform the service. Tried to get away on the cheap so just did the fluid drain and swap but the shudder didn’t go away. Had him swap out the trans filter the 2nd time it was done and this time it worked. 2016 Yukon XL Denali with the same transmission.

I heard this man speak and instantly trusted his guidance.

Did my 2015 GMC 8L90 with the blue label Mobil1 LV ATF. and so far so good. Shudder free.

Had this done @ the dealer under warranty and helped the hard shifts. I never did get shutters thought. Starting to act up 45k later so will be doing this again myself. Thanks for the info.

FYI - GM stopped asking dealers to emulate a shudder with pico gauge around mid 2019. Ask your dealer to ref latest version of TSB 18-NA-355 and all you have to do is present your vehicle within the remaining powertrain warranty, tell them you think you have a shudder, and they will triple flush your transmission under warranty. In a Corvette, that's worth 24 quarts of new blue-label Mobil1 LV ATF HP. This is a GTL group 3+ base stock with a special additive pack from Infineum, which is a joint venture between ExxonMobil and Royal Dutch Shell Chemicals.

I just did one in the shop, dropped the pan and so much converter clutch material. so i put a new converter in it and did all 4 electronic shocks. Like a new truck.

Thank you! Just started having this problem. Dealership was $149 for diagnostic and wants $950 to swap fluid and I’m not even at first maintenance interval for another 9K miles… pushing back on warranty. Glad I saw this.

Great video!!! Only thing I recommend. You have all these expensive tools but no cheap gloves. Automotive oils can be bad for your hands and fingers.

Great video. I was having the exact same issue on my 2019 Suburban after I had service guy do a service flush. I took it back a week later when the shudder began and they were stumped. After I saw this video I gave them all this info. And now my ride is GTG. Thank you so much for you video.

I changed my fluid. The 1st 1000 miles was good and now the shudder is back. It starts around 37 mph. I have to say thanks for the spray bottle hack. That works really well. I have to get me an extractor though. Those cheap hand pumps work but a PIA to use. Now I have to see what GM is going to do about this. Great channel thanks.

I just came across this video. Sir, I just bought a 2017 silverado with 122k With a bad transmission. The truck would not move. I changed the filter and oil. Now it runs fine but it has that shutter. I'm going to do exactly what have done to your truck. Thanks for posting the detailed job.

2018 Silverado. Had my local trans shop flush the system and replace it with Amsoil. Best decision I ever made. Shifts like a dream.

Excellent video! Thanks for sharing this. My 2017 High Country with 6.2L and 8L90 transmission is exhibiting some of the exact symptoms that you describe. I will be using this video to change mine

Nice job on the video. Many GMC and Chevrolet dealers back in 2016 to 2017, were buying back Trucks and Cars with the 8L90 via the lemon laws. Every state has different lemon laws but GM was buying them back due to the multiple repeat repairs without resolution. This was all because of the Torque Converter Shudder. I remember the dealership I was at originally used the Mobil 1 Black Bottle Fluid, only to have trucks and cars return in like 3000 miles or less with the same complaint. As I recall the Mobil 1 Blue Bottle Fluid came out in 2017 or so and resolved the Torque Converter Shudder immediately and no return complaints. Somewhat surprised you were still able to buy Black Bottle Fluid, as I remember the GM dealers in my area were instructed by the zone office to discard any Black Bottle Fluid due to some dealers still using it and creating repeat customer complaints.

Great video. I have a 2017 LTZ with 8 speed trans with approx 92,000 miles. Shudder started at about 89,000 and continually got worse. Your video saved the day. The only 😊problem I had was finding the Mobile 1 Blue Label Fluid. Couldn’t find it anywhere. Amazon shows it available but I gave up on them after 10 days. So,I went to my local Napa Auto store and purchased Valvoline Full Synthetic ATF Dexron VI and Mercon LV. Viola! The results were better than when the truck was new😅. No more shudder and no more load up hard shift between 1st and 2nd. After reading some of the repeat shuddering with some of you, I am hoping this will last.

Appreciate you posting this. Just a quick heads-up... trans temp is supposed to be between 95-113 for fluid check per GM service manual. Also, if you still have the thermal bypass (thermostat) they recommend to bring it up past 190 initially to cycle the fluid through the cooler lines and then let it cool down to check per the above temps. Obviously if you've deleted the thermostat you can simply check when it's at the above range. Great video!

I just came back from Lakeland Regal, they wanted $697.00 just to exchange the fluid. They where charging me for 20 quarts. No filter change. Thanks so much. I’m also installing the superior solution model STL010 since I am in Florida, and temperature is an issue

Nice! The Cleanest Transmission fluid change I've seen

I did this on my high country and it worked perfectly. This is a great video and great Information

I have a 2017 Silverado that had an over active trans and would shudder or get stuck in overdrive if you went to pass someone if you didn’t push the gas pedal down hard. I have the 6 speed, came across your video after searching. Let me tell you or anybody watching that has any issues with there 6 speed, I changed my fluid with the stuff he said to use, sucked all the old fluid out with a new filter and let me tell you my trans is perfect. My shifts are so smooth and doesnt feel like it’s going to shift back or over active. If you are like me and undecided trust me go ahead and get this done.

I did a double flush on my 2016. Changed it drove it week then flushed it again 10k miles seems to be good my opinion is do it early don't drive around a year with transmission eating itself. Great video 737

OMG wow!!!! So I did things a bit different than I was planning. I bought two pumps from harbor freight for $8 each. Never pulled the pan (only 39k miles), pulled out 6 quarts of DIRTY fluid, I was surprised how dirty it was, nearly black. Then filled 6 clean quarts, then drained again after running the car 10 mins through gears, etc. I drained 4 different times and filled 4 times. Even on the last attempt the fluid was still far from new looking. But I decided to give it a drive, INSTANTLY the trans shifted smooth through all gears and the shudder was gone! I have been losing sleep over this for weeks. It wasn’t that hard to do at all even on a corvette where it’s much tighter working space. Not going to lie I was skeptical on this working. Before I had a hard shift into 5/6/7 gears and then a shudder after it was in those gears. Not it’s smooth shifting and shudder is gone. I pulled out 23 quarts total and put 23 clean quarts in. I estimate that the fluid is still only 75% fresh. My backup plan was if this didn’t fix it, I will drop the pan and change the filter and fill it once more. But I am feeling blessed that this did the trick! WOW thank god! The guy sold me the car knowing it had this problem, but clearly didn’t inform me. What a prick! I hope you guys give this a shot.

Wow. Glad I came across this. Just bought a used 2016 Silverado LTZ 4x4 it started doing this after about a month. I got 68,000 miles on it. Shudder is light but only when accelerating uphill. It does shift hard between 1st and second.

Thanks so much I started to have shifting problems but change it to the mobile one and it shifts like brand new! Awesome video man thanks again!

Great video, and thanks for the update. I plan on doing this soon on my 2016 Sierra Denali 5.3 w/ the eight speed. Keep us updated.

I actually like the easy of doing simplicity of doing a flush on my 8l90. After I shut the truck off and while hot, I opened the level check bolt. 2 quarts came out. Then, I went around and broke loose all the pan bolts. It was more start forward than the 4l60e. 4 quarts in the pan. No issues with the exhaust like I thought. Just yaw to the passenger side. Changed the filter and cleaned everything. Not too messy. The fill... I pump until fluid came out. Started the truck and kept pumping until it was just bright red fluid coming out. Check the temperature and let it dripple and closed it up.

Thank you for this video. This was very helpful. I just completed this on my truck, hoping the shutter goes away. Next time I’m extracting the fluid, and using a pump sprayer to inject the new fluid, what a mess without!

Thanks bud I’ll be using your video on my ‘17 high country same exact issue

Did this tonight. I had it flushed several years ago by the dealer before they started using the blue label fluid and the problem came back. Basically parked it for a while or just 'drove around it' by getting to know how to work the throttle. The dealership put the drain bolt in so tight I bet it has 80+ ft lbs on it and it stripped. I could NOT get it off. So now I'm sitting here with a stripped bolt on the bottom of the pan and the trans filled until it came back out the filler hole. Think I'm going to drive it a couple miles to an oil change shop and have them get it out. Probably going to need a new plug though. Arrrgh.

Just did this in a pinch and wished I did the lines but I’m doing it again in a month. I couldn’t believe the new transmission was as bad as the old one. 20,000 miles and looks like 300,000

Thank you for this excellent video!....I got same truck, only a 2018, with 61,000 and it just started that shutter vibration thing...I have neglected to change the transmission fluid ever because there is no typical dip stick for my local shop to evac the fluid from, so they couldn't do it....Dealer says I should have changed it at 45,000...Taking it to my local GMC Dealer tomorrow to have them do it all with the correct up graded fluid GM now recommends...Hope I have the same great results you did. Thanks again for your help with this video!....

Great step by step video, thanks! Great job!

I also installed the STL010 in my 8L90 along with doing a filter (while changing temp sensor) and adding blue label. Keeps the 8L90 from opening up the thermal bypass at 194 and gives you an instant fill of the cooler. Keeps my temp around 155 at all times even in the heat of July.

I just did my 2017 today.. Work like you said👍👍👍👍👍 the shuttering in hard shifting is gone. Thanks for making this video, sir.

Yea buddy of mine did this on his 2016 silverado with the 8 speed tranny. It's working so far he said when the mechanics flushed the tyranny there was a bunch of sludge in it, no metal savings though.

Great video. A word of caution replacing the pan. There is a solenoid that can get caught and break the electrical connection. GM had a national hold on that solenoid. It will cost you a valve body to fix it. Ask me how I know.

You should compare Mobil to Amsol fluid. High reviews for Amsol. I have a 2018 Silverado 6 speed. Transmission thermostat causes oil to heat up extremely high before it will circulate through cooler. Newer models have been fixed. I swopped out thermostat with Surecool bypass and what a difference it made. Temperatures now run the same as 2020 models.

I had the dealer do this under warranty on my 2015 Silverado 6.2L 8-speed (8L90) at right about the mileage you have in the video. They used the blue label ATF. Since then I passed 100k miles. The shudder hasn't returned that I can tell (I have aggressive tires, so it's not quite as easy to tell), but I am getting some hard shifts in low gears, especially when cold. I plan to do this procedure soon. Great video.

Just bought a 2018 that has this issue. Luckily there is a bit of warranty left on it and I’m dropping it off at a dealership tomorrow

Also get a Trans tune,turn the TCC off in 1st through 5th. I use HP tuners well worth the money.

I just took my 17 sierra denali in for 90,000 service today, noticed a vibration a few days ago and thought it was something with the front end till I seen these post and videos. It is getting a transmission flush as well so hopefully that does the trick

Very clear steps and instructions. Thank you

thank you so much , i got exactly model and years and got 78000 miles and the same problem , i will try to change tran smissions fluid #124715 and filter hope it help stop the shutter ,,,,thank

Sometimes the shudder can be the torque converter failing or the driveshaft.

Thanks for taking the time to make the video 👍👍👍👍👍

Awesome video, I watched it entirely and thank you for your time!

Anyone complaining about hard/firm shifts 1-2 2-3 3-4. I solved it in my 2016 Denali with the 8L90. First the dealer exchanged the fluid to this new fluid and that solved my shudder problem. Luckily I caught it before I burned the torque converter clutches. To solve the hard/firm shifts I had the transmission tuned by a local performance turner that disabled torque converter lockup in the first 4 gears and now its silky smooth. Never had an issue again with shudder or harsh shifts. It's been 40,000 or so miles.

Thank you for your time!👍

Awesome video! A big help. Thanks buddy.

Awesome video!, thanks for the great info, I’m going to try this fluid change on mine, Thanks Again!

I had this done and it was a lot better for about a month BUT the same problem came back. Have not done it again. I have the same problems that was described here except no shuttering.

Awesome video brother! My Escalade is doing the shifting issue from 1st to second doing the fluid this week hope it fixes it!

I have the same issue but hopefully its still covered under the powertrain warranty as im only at 30,000 miles.

I used the Amsoil blue label, stopped shudder immediately!!!!

Very thorough video. Ty for the post

I had the shudder come on last summer....2018 Silverado, 6.2 litre, 8 sped transmission....took the truck back to my dealer...they flushed and filled with the Mobil 1 synthetic fluid you’re showing...(blue bottle) ....shudder has not returned.....

Best video on this trans!!!, 👍

@737mechanic Great how to video What is your SWA E #? I am also a SWA mechanic Dallas base.

Similar problem in a 2018 Silverado 6.2 Litre 8 speed with 110,000km. Cost me $800 for full flush and replacement of fluid but it solved problem. Dealer claims maintenance schedule says to change fluid every 80,000 km. Never have changed tranny fluid on a gmc pickup in 50 years of ownership of many. What crap they manufacture now.

Just completed this on my 2019 Chev Silverado 8L90, put the Amsoil Trans Fluid back in with 7.5 quarts back in and new GM trans filter, ready to put 100 miles on it now and see how it handles the shudder/convertor issue.

I appreciate your hard work on this vid but I'm pretty sure your fluid is low. Considering you drained the cooler and lines, they never filled unless you had previously installed a bypass for the trans thermostat. That thermostat does not open and allow fluid into the lines and cooler until the trans reaches 190 on older models, or 158 on newer cooler lines. I'm glad your shutter is gone and wondering if you have any updates considering this vid appears to be about 2 years old at my viewing.

My 2019 GMC Sierra slt transmission went out at 12,000 miles . Yes I hate this problem got 16,000 now but still jerks a lil

Wow everything u say the truck mine was doing the same thanks a lot very good video will get on this thanks again

Just a thought if truck should be on level ground but had the front tires on 2” peace of wood !!

Do you still get the random rpm jumps around 1500 rpm or did those go away too??

change the filter and fluid and there is no trembling and shudder never any more i had same issue but after i change them the car great now

Great Video, thank you.

At the 35:00 when u removed that screw, that oil coming out is excess oil? I didn't understand that part, you should do that after a fluid change so it levels it up to the perfect level? Please If u can explain, thank you.

I run wolf synthetic in all my transmissions. The stuff works great. Being around Transmissions my whole life I know a thing or two about them!

Change the transmission thermostat the same time change fluid will run cooler and avoid burning up fluid

I have 63000 miles on my 17 Z71 Colorado and does the same thing.

I had this performed on my 2015 sierra denali 6.2 under warranty. There was class action lawsuit for this problem. The GM service bulletin says to flush with fluid and fill something like 28 quarts of fluid. That's why they want to change you rather than warranty it.

So I did exactly this a year ago and it fixed my shutter. However after putting about 20,000km the shutter is starting to come back. I'm going to be doing a flush again and hopefully it takes away the shutter again. What I am assuming is there is still old fluid in it from the previous flush that just causes the shuttering to some back. Hopefully with another flush it will dilute the old fluid more and eliminate the problem for good.

if i only drop the pan, change that fluid a couple times, will that get most of the old fluid out of the system as well? thanks

best video award

Thanks for making this video! 👍.

Any further updates ? Im about to do a second fluid/filter change to try and get more of the old fluid remnants out. Also going to do a third one at the next oil change interval... I figure 3 services in about 10,000 miles ought to get about 95-99% of it out of the system. No issues as of yet and currently at 83,000 miles.

Thank you for the info,

You’re the real MVP 🥲 😂

Hey, thank you for the video. Im just curious if you had any more issues with it or have you changed the fluid anymore since?

Thank you sir for a great video

Thank you awesome video.

You still don’t get the fluid out of torque converter this way,,,

Could this fluid be used for the transfer case as well??? thanks for any help 2016 Chevy Silverado 1500 5.3 4 wheel drive

That is a temporary fix. Dealership did it to my 2020 canyon it was good for about 8000 miles

Awesome video, thanks. I subscribed. Do you have a video of what the shudder felt / sounded like?

Want you meant shudder ? That’s the one you felt like somebody hit you from behind of your truck in transmission area when you try to accelerate or slow down?

You have to drop the exhaust on deep pans.. And make sure they give you the gasket.. There are two types..

Have you tried to use this pump to extract your oil. I tried in mine and it seems like it doesn’t go all the way down the dipstick tube. I’m not sure if there is something at the bottom of the dipstick tube that catches the dipstick or prevents something other than a dipstick to go down the tube.

Any suggestions for installing a drain plug??

One question I want to find out though is how much fluid is left in converter after you drain your fluid that will get mixed with new fluid

Thank you very much for the informative video. May I ask what adapter you used to hook the clear hose to the cooling pipe? There seems to be something in middle connecting both of them. Thank you Sir.

great video...i have a cadillac ct6 with the 8l90. my car recently stopped shifting after a drive home from work. parked it in the garage, got up to go to work the next day and for some reason its like the trans isnt responding. gears change on dash but i feel no movement in trans like its till in park every gear. havent had it looked at yet. im tryna figure out where to start any suggetions?

I have a 2015 gmc sierra 5.3 with this exact same issue bought in Canada, could this solve my issue as well? Thanks so much for the upload 👍🏻

the truck run better than before . but still did little on the low gears specially from 15 mph to 35 mph ,seem like when i slow down get ready to stop ,fell like the s stranmission low gears help slow the truck down , should i drain another 6 quarts out and add 6 quarts blue lable in to help flush out all the fluids from the torge converter , ???

My father in laws 2019 sierra started doing this. Wondering if there is a way to use transmission pump to pump fluid out of the cooler lines while filling with fresh fluid so as to flush the torque converter?