6L80E The real cause of failure And how to address them.

[@richardlewis7471]

You’ve made my Saturday night! So great to see you once again!

[@AutomaticTransmission]

Wow, thank you!

[@davidmiller9485]

@@AutomaticTransmission It's good to see a new vid. I keep going back and watching them again. Stay safe and hope things are going well.

[@testosteroneinc.3800]

Hyrum is a real humble man. This is how the other transmission channels should behave.

[@AutomaticTransmission]

Meat and potatoes only, showbiz belongs somewhere else, thanks bro.

[@keithgoff3272]

What a great explanation of what is actually happening to the converters on these transmissions. As always Hiram does a great job. Keep them coming.

[@BlindBatG34]

Hiram!!! The man. It’s great to see a new video from you. Best wishes to you and your family in these crazy times.

[@AutomaticTransmission]

Much appreciated

[@SidewaysTA]

Hiram, so great to see you again man! Welcome back!

[@guachicuta]

Ohhhhhhhhhh mi amigo a la lejanía. Que alegría escucharte y verte de nuevo aquí en tu canal. Compartiendo tu conocimiento y experiencias. Gracias Hiram. Continúa. Saludos desde Venezuela.

[@zaydqasas6156]

I learned so much about transmissions just from watching your videos. I'm an Industrial Mechanic, and although I've worked on rather complex hydraulic equipment, they don't really compare to a compact transmission.
My sierra tranny is failing. I learned quite a bit today. Thank you.

[@slink1957]

Glad you're back. Nice work!

[@AutomaticTransmission]

Hey, thanks!

[@jeremymurphy7320]

Happy Easter, y'all...Hiram's back

[@joshuaraffensperger3592]

It’s better to just replace the 6L80 converter with a 6L90 converter as it’s a much stronger converter than the weak 6L80 converter. I upgraded from the 6L80 converter in my suburban to a 6L90 converter and my transmission shifts as smooth as ice. I also upgraded to a larger trans cooler. I also deleted the AFM system completely.

[@jacksonevans9378]

How much did this run you? Thinking about this

[@Jake_Hynds]

@@jacksonevans9378 if you had it done at a shop they would charge you about 6 or 7 hours labour at about 100 bucks an hour plus the cost of a torque converter.
Converter prlly cost like 700 bucks .
Total would prlly be like 1500 bucks minimum at a shop

[@joshuaraffensperger3592]

@@jacksonevans9378 which part the converter, cooler, AFM system delete or all of it combine?

[@jacksonevans9378]

@@joshuaraffensperger3592 converter

[@joshuaraffensperger3592]

@@jacksonevans9378 $800-$900 if you do it yourself. $1200-$1500 if you have a shop do it.

[@swiftWord]

Good to see new videos again! I rebuilt one of these 2 years ago on my own 2500 Suburban and spared no expense... it only lasted 36k miles before the convertor took the trans out again. I didnt have HP tuners and wish this video was around back then. But now I swapped a 4L80E and not going to have to deal with this fragile trans anymore.

[@shauno3697]

It's good to see you're still alive & kicking.

[@muadeeb]

Hiram, great to see you posting again. Wish your shop was closer to me, my CVT (RE0F10A) locked up while I was driving it and had to replace it with a junkyard unit.

[@jdholl9946]

Glad your back, your vids have saved our shop a lot of headaches.

[@AceJimbo]

Good to see you posting videos again, Hiram! Great video, I'll make the HP Tuner changes with my 2013 6L80 and hopefully avoid premature T/C failure. As always, excellent information and guidance.

[@AutomaticTransmission]

Thanks, there's more to do than that on HPtuners to the 6L80E. I'll be posting a video on it soon.

[@driftdef]

@@AutomaticTransmission can we get a video on all changes i have a 2016 with almost 50k and i just got a hp tuner to fix my issues before it blows thanks awesome videos and details

[@edwinlora5520]

@@AutomaticTransmissionwhere are you located?

[@oldschool9746]

welcome back its so good to see you again.

[@pianoman2350]

I'm so happy to see you back. I know these videos are a lot of work and they are very appreciated.

[@CamelGarage]

He’s back! Whooot!

[@AutomaticTransmission]

alive and kicking

[@CamelGarage]

Great to hear you had me worried. I found you looking up O1M rebuild videos. Great stuff!

[@billyjones7607]

Glad to see a new video from you!

[@stephenp1717]

Wow so glad to see you back. Love watching your videos. I would look back from time to time to see if you were putting out videos again. Hope you and your family are doing well. I look forward to more videos. I know it’s a lot of work. Thank you.

[@stevephillips174]

glad your back Hiram!!. i really enjoy your videos, i have learned a lot from you. you are the best on youtube. best wishes

[@sixpointtwosingfeld489]

Awesome, nice to see you again Hiram

[@CubasAutomotive]

WOW!!!!!! Hiram!!! Qué gusto! Saludos hombre!! Now on to the video!

[@CubasAutomotive]

Very interesting. I've heard good things about HP tuners for even viewing PIDs. I haven't had the opportunity to use it myself yet. I'm liking the fact I get to see some of the features and functions here. Generally not a fan at all when ppl tune, but it's understandable when a technician does it when they know what they're doing.

[@AutomaticTransmission]

Thanks Cuba, It's a very powerful tool. Specially when you're trying to figure out air fuel ratio discrepancy. Paired with a wide band sensor and your scope of choice, you can quickly pinpoint issues with the issue you're trying to diagnose, fuel trims can be difficult to diagnose if you cant really see what you're looking at. It's an awesome tool, a good investment too.
In my case, instead of engineers trying to solve our industry transmission issues which are very obvious that never take care of, it's safe to say we can address the issues through this method.
Thank you for your comment, it's very valuable.

[@agoodneighborautorepair2176]

Very good explanation and information

[@mr.anderson3855]

Well explained info on the new era of chevy/ GM factory flaws! Keep up the good work Hiram!! Mr.Anderson - AndersonFam Transmission

[@obchapp]

Glad to see you back! Happy Easter!

[@AutomaticTransmission]

Thank you brother, have a great pass over. Shalom.

[@timstanford3443]

Good to see you back on here!

[@AutomaticTransmission]

More to come!

[@CubasAutomotive]

@@AutomaticTransmission Hope so!! 😍🤩😃🤞👏

[@SPEEDOFDOG]

Oh damn awesome thought you were done! Welcome back!

[@AutomaticTransmission]

Kicking and screaming...

[@thomasmullaney9125]

Dude, great to see you! no one like you anywhere on the AT's. so glad to see a new quality Vid....

[@mikeeustice4452]

Glad to see you back I hope the year was good to you

[@gregreitan3634]

Thank you and welcome back.

[@nsgtr753]

My stock 2015 Yukon (5.3) has 135k miles on the original TC and trans. I just bought a GM Tow Package Torque converter (dual clutch like the ZL1/CTSV TC, just with 3 bolt holes instead of 6), to replace my stock single clutch TC as preventative maintenance. My trans still shifts like butter and has zero issues. I also bought a Sonnax Zip Kit, the trans go clutch select valves and a TECHM rebuild kit to put in as well. I have HP tuners and will stop the TCC slip 1-4, should get at least another 135k miles out of the TC doing this, we will see how the rest of the trans holds up. This was all about $900 all said and done with OEM trans fluid.

[@justinstatham6378]

Where are you located? I’m about to go through the same thing and could use some
advice.

[@tsahlee313]

No problems after following this video.? I have a 2015 Denali 6l80e thinking of copying him

[@nsgtr753]

@@justinstatham6378 Kansas

[@nsgtr753]

@@tsahlee313 no issues at all, put about 15k miles on it since then, 3k miles of hard towing through Colorado hauling a camper to 12k feet elevation and back down. Zero problems except I did have to lock up the converter in 3rd and above when towing to keep temps down. Still never went above 200.

[@JorgeGarcia-ls1qy]

Listen thank you for your kindness in transmissions this video help me on my truck good job brother

[@thomasjohnson1142]

Nice to see you back brother !! All them issues that’s why I’m glad I’m a tuner and I tune with hp tuners my self .

[@AutomaticTransmission]

Right on, Send me the link to SEMA so I can post it on the next video.

[@SteveMelissaMcAdams]

Man glad to see you back!

[@fascistpedant758]

Great to see you back!

[@AutomaticTransmission]

Thanks bro

[@julianarodriguez3635]

Glad to see you back bro

[@Watchyn_Yarwood]

Good to see you back! You've been missed!

[@20tea]

About to install a Circle D torque converter. Has a billet cover and built pretty solid!

[@leroygreen1877]

Right On Hiram is BACK!!!!!

[@AutomaticTransmission]

Thanks bro.

[@glennggward081]

Glad to see you back. Missed your videos

[@AutomaticTransmission]

More to come!

[@tomduncan1970]

Good to see you making videos again!!! Thanks!!!!

[@3cl1]

I was hoping to see you post another video, good to see you posting again.

[@MitzvosGolem1]

Coumo stadt... Awesome u are back

[@r1ddl324]

Yes! Thank you, I've been missing your uploads, thank you again! Hope all is well

[@jessicawatson-english5505]

I'm so glad your back l almost ran off the road when I seen your video pop up 😂 I've learned so much from you I hope you continue to make these awesome videos thanks 😊 God bless you and your family

[@AutomaticTransmission]

Sorry about that, keep your eyes on the road 👀, God bless you too.

[@russchamberlain8755]

I knew you would make it.. Welcome back. Man.

[@grominwithrob1339]

I bought a HPTuner and disassembled DOD, E85 because the virtual sensor kept creating a positive feed back loop making the truck run lean. Then I disassembled the slip between 1-4 and increased pressure. Truck runs amazing and the power is fantastic and always ready. I didn’t buy the tuner for extra Hp, I just wanted to eliminate the BS systems.

[@DaleUrbanek]

I have a 2017 Suburban. Had to replace the transmission at 78,200 miles. Count me in on a class action

[@user-ud3yt5uq7g]

Ура! Я столько ждал, что пропустил видео годичной давности!

[@sparkplug1018]

Good to see you back, been a while. Hope everything been good for you.

[@hrxy1]

Good to see you again

[@eribertoacedo9505]

Turbo 400 when it was rebuilt we put in a transGo Reprograming kit, works great snappy shift!

[@AutomaticTransmission]

Awsome

[@billk5727]

Glad to see you are back with videos !! Very nice upgrades to those units. Thank you so much !
Bill

[@AutomaticTransmission]

You bet, thanks Bill.

[@davidtipton7234]

When I got mine. I have hp tuners. Turned off DOD. And turned off converter lockup in all gears but 6th. And shortened the shift times up just a little. Haven't had any problems shifting since. I used to have shift flares bad.

[@carloscruz-yb6zm]

excelente trabajo mi hno hiram hay mucho por aprender aun le agradezco que comparta su conocimiento con nosotros Dios bendiga mas su vida

[@AutomaticTransmission]

Gracias, igualmente.

[@gregdavidson1990]

We rebuild these all the time own a car lot always replace the pump the cover and bell housing gm part number on Amazon. Cheap. Never thought to use Hp tuners and look at converter lock I can't believe gm would grind on a tongue converter a factory one at that in 2nd. Thinks for the tip

[@alex_y4290]

glad to see your new video again:)

[@AutomaticTransmission]

More to come!

[@garysuarez9614]

Never did learn power train breakdown. Good time to learn. Thanks!

[@Spliteyemoto]

Hey Hiram, great to see this video. Just inherited my late fathers truck and looking to make it reliable. Is the HP tuners portion something that can be done without changing TC and not using the kit? It’s only got 50k km and I’ve already used the range afm disabler. Will also be getting the cooler thermostat upgrade. It’s a 2018 Sierra. Thanks!

[@patriots5628]

Learning... Thank you for detail explanation....

[@tonysorice5142]

my way is drop the pan change the fluid in the pan and filter about 5 1/3 quarts ,full up with 5 1/3 quarts drive 30 mile ,repeat again 5 quarts drive 30 miles again repeat 5 1/3 quarts best way changing ur trans with out flushing i have 2014 grand jeep takes total 16 quarts,,this is with out checking or flushing,,,

[@eribertoacedo9505]

I have the transmission in my 2002 Silverado interesting video!

[@AutomaticTransmission]

The 400 or the 6L80E?

[@DMoneyGarage]

Woohoo! Welcome back!

[@moisesdosramos7529]

Por Fin! Hiram is back!

[@cullenmiller8170]

Nice video and explanation. Everyone thinks they are a tuner and change stuff around and give people a lot of bad tunes.

[@AutomaticTransmission]

That's true.

[@LSJUAN]

Woah been a long 2 years waiting for a new video. This is exciting

[@AutomaticTransmission]

More to come!

[@jimmypage4162]

Got a video on 6L90? I just got a higher mileage ‘09 CTSV and really want to know what I can do to prolong the life of it was checking out the sonnax zip kit whatever I can do with the valve body/ trans tune to prolong the life of it. Changed fluid/filter immediately hadn’t been done in 50k..no metal..fluid was still red..pan magnet was very clean minimal material. Thanks! Love your content man

[@BlitzGaming1]

i really hope you see this comment. i have a 2011 avalanche 5.3 6 speed so 6l80 trans. my issue is under quick acceleration (needing to get on freeway, or pass a car) i notice trans will "stutter, grind, and RPM will red line without shifting to next gear, unless i let off accelerator and then ease back into pedal, i also have 205k miles on the truck. im really hoping that a new TCM (trans valve body) will fix the issue. after watching this vid now has me concerned that i may need to take to trans shop for 1-3 clutch plates bad... idk yet havent dropped pan yet to look for metal. im just doing the research to fix this in a one and done.. i have heard these are known as GM throw aways. i fell i can rebuild the tcm valve body but if it exceeds that and is more internal trans issue then ill be forced to take to shop. 1 shop told me that it would be 4k minimum for new that i cant rebuild, mind you this was just over the phone he never drove it, looked at it, or put a computer to it.. please help point me in the right direction or message me and we can talk 1 on 1.. please i need help

[@ds70bonneville]

wow, after 2 years, out of nowhere...

[@davidson2004fatboy]

I BE ALL DONE and HAVE a LOT of PIECES LEFT OVER, and PRAY KNOW ONE WOULD NOTICE

[@Ashroyer86]

Lol

[@towmater1966]

I have missed your videos

[@mellowrobinson2]

I'm a simple man, I see a new Hiram video, I click

[@thomasjohnson1142]

I ended up going all sonax valves but left the previous builders transgo clutch select. But my transgo tcc valve stuck open and smoked my converter. But I know transgo is a great company when I pulled the tcc transgo valve it was stuck

[@AutomaticTransmission]

Sounds logical. But what I've seen a lot is the other way around. The converters failing prematurely and debris sticking the valves, usually the compensator feed valve which it sticks very easily. I've had converters shuddering right off the bat before even delivering the vehicle to the customer, Sometimes after a week or 2. Some on the 10 day 300 mile check we ask our customers to bring back to recheck that everything is going smooth.
I do agree that Transgo probably need to update that and other valves adding lube grooves to make them a little more stable, specially where they added the extra material.

[@thomasjohnson1142]

@@AutomaticTransmission yeah I found tcc control valve stuck put new pump and upgraded to sonnax tcc apply valve on the pump works great I’ve been running it for 600 miles so far . But the shudder for back see what I sent you and that help you if I’m out your way I will stop by and show you . But you can look back that will fix shudder

[@AutomaticTransmission]

I just did one this week, it worked good. I'll post it later. It keeps the TCC right at 0 slip RPM's. I did the normal TCC tuning added your advice and did a complete trans tune on it. I'll go through the whole tune on the video. Maybe I understood wrong, once I upload it tell me what you think.
Thanks again.

[@omaralnajjar3081]

Welcome back

[@AutomaticTransmission]

Thanks bro

[@DG-od4si]

long time no see, thanks

[@AutomaticTransmission]

Thank you too, I had a little breather so I thought of you guys.
Been extremely busy lately.

[@davidson2004fatboy]

DAMN, I WAS SWEATING JUST LOOKING at the PARTS😒

[@luctessier2215]

AWESOME, your back. I'm in the automotive trade an I had learnt so much from your previous videos about transmissions! It's great to have you back!!!!! Also will these mods work on 6L90?

[@AutomaticTransmission]

Yes, 6L45E, 6L50E, 6L80E and 6L90E.

[@Chrisuperfly1]

Have you guys seen any of the GMP Supermatic 6L80’s yet? I have one going into a g8 right now, just curious if you have seen any grenade yet.

[@Relisys190]

Excellent information.

[@AREyouSTUPID...]

Love your videos and your g35. I've got a g35 I'm parting out. Motor blew, no title, good 6speed trans tho and everything else if you need one or know anyone. Cheap. In s.e. tennessee.

[@chrismoore3774]

Where is your shop located??

[@MNBT-jq9lv]

Brother been missing your posts!!!

[@Relisys190]

Question: Can the TCM torque converter lockup tuning be completed on a STOCK 6L80 ? Or does it need the transGO hardware installed first ? Thanks !

[@warriorplutotrent3827]

Yes I did it at 114k miles on my 08 Yukon Denali. I have 179k on it now and no issues. I also change my fluid on time though. Drive it like I stole it every chance I get😁

[@mrk7201]

Beautiful finally a 6L80 that will last now all these trucks need are a Warehouse full of engines then they can keep this vehicle forever

[@aclark4326]

What state are you in? I just installed a GM reman 6L80 in my 2016 Silverado and it has a shudder from 1 to 2 and 2 to 3. Torque slip acrual and desired are 500 rmps apart. Bad converter right from GM? I took to the dealer i bought it from and they said until the check engine light comes on they wont do anything. The original trans failed no warning or lights!

[@kenwantje5603]

How can I get one of your 6L80 rebuilt units for my 2011 Silverado 1500 4wd

[@052500hd]

With all the research I've done you definitely seem to have the most knowledge on these units.
My one question is what changed between 2007-14 and the 15+? It seems that the 15+ 6l80s have the most problems.
I just had to send my 13 Yukon to the shop and it has 261k miles on it
Thanks

[@AutomaticTransmission]

Engines are different. LS to an LT. The torque is different from one to the other. They're programmed different on Gen5 the torque converter comes on in first right before second gear and up while on the Gen4 is at 4th gear and up. Solenoids, pressure regulator, actuator feed limit and compensator feed valves become very busy because of the change in programming causing quicker wear than Gen4. And the added cooler bypass makes it worse.

[@alexanderfields6449]

u rebuilt yo transmission

[@str8blastn_HTX]

@@AutomaticTransmission wow thank you. I have a question I have a 2014 GMC Yukon denali and a 2013 Chevy silverado. Would they both be Gen 4 transmission because the Yukon didn't change body styles until 2015.

[@TheLouisianan]

His response makes sense. My dad has a 2012 silverado and had his 6L80 go out at 187k and I have a 2018 making a rattling noise at very low RPM now at 68k. These transmissions are junk.

[@chrisnock1151]

I know this is an older video, but I am just now seeing it. I have a question I have a 2020 Yukon. I am having NO problems with the transmission. I just installed a Sure Cool STL010 bypass valve to prevent any future issues. I noticed the tranny fluid is pretty dark. Vehicle has 45k miles. What do you recommend I do to ensure this transmission stays healthy? I appreciate your time

[@tbl8560]

Hiram, great video. Especially the computer corrections. Which PTC converter do you recommend? 6L90 version? Do you update to the latest GM cal before making TCM adjustments? Thank you for sharing.
Just did a service on a 2017 5.3 6L90 with 100K miles. Never been serviced. Filter restricted. Small metal debris field in rear of lower section of pan (1/2 by 2") Trans still a little herky jerky so deleting the DOD and adjusting TC parameters is definitely needed.

[@tylerevans1916]

Can you make the changes using HP Tuners without doing anything physical to the transmission?

[@AutomaticTransmission]

If there's no issues with it yes you can. It will improve and make it last longer.

[@jeffmccurry5678]

Very informative video. You seem like a very intelligent transmission mechanic. My question to you is this. My transmission is doing fine so far at 45,000 miles. What can i do to my 2017 silverado 1500 6 speed tranny to prevent a future failure without taking it out of the truck or removing the DOD ?

[@Benjbugarin]

Hello.
so wanted to see what you think.
2017 Chevrolet Express van extended.
6.0 I believe with 6l90e
When cold slowish goes in gear or moves forward. With a sudden moderate slam into what I believe is second gear ⚙️.
Then drives like normal if still driving like say from parked to a main road where there are no stops.
After stopping at stop. No forward movement. Unless light throttle is given ever quick but slow tapping of acceleration pedal will slowing moved forward.
Engine light on but says fuel system code. Related to someone trying to steal gas. Damaged something.
Not sure if it's related to drivability issue.
Currently waiting for warranty process.
The drivability issue came on suddenly. One week ago.
Has 87000miles.
Let me know what you think..

[@thomasjohnson1142]

I know it makes since to apply pressure to the apply ramp but it actually does nothing . You want to make those changes to regulator gain moving gain up or down adds and subtracts pressure but very small increments. And regulator offset Is lock up pressure the more you add to to offset the harder it will lock up or engage. Helps with dragging converter . If if you want to check my advice creat a table in your scanner mirror you apply ramp table . Making changes to ramp table will show no change but when you make changes to your regulator gain again small changes you will see pressure changes positive or negative. Moving the regulator gain up actually removes pressure and that helps with shutter. Always again thanks for all the videos .

[@AutomaticTransmission]

Awesome,
When you say regulator, what table should I look that under?
As you know these things are known for shudder issues. What I've been doing has worked great so far but the more information to add would be great.
This video only shows what I do to TCC issues. I actually do a full tune on some with some manuals I have.
It seems you're more experienced with tuning than I am. I do it as a hobby on my own vehicles, cams and stuff. And what I've learned so far to improve my transmissions at shop has really helped me a lot.
Any input you would like to share would be appreciated, not just for me but for others that have the capability of doing it as well.
Thanks bro.

[@thomasjohnson1142]

@@AutomaticTransmission look under the apply ramp table it will have a regulator gain table normally set to 1.5 and a regulator offset table that’s under that one in PSI. So try one day after your done building make your changed then add a little to the regulator offset table you will se it make the converter apply harder and faster with out dragging. And regulator gain the more you add it actually goes backwards so it takes pressure away and actually helps the converter stay locked with out shuttering and great for higher stall converters .

[@AutomaticTransmission]

Awesome, I'll try that on the next rebuild.
Thanks, I really appreciate that.
I'll try and post a video of it and give you credit for it.

[@thomasjohnson1142]

@@AutomaticTransmission haha credit is all you . You’ve been a huge help I rebuild my 6l80 with all raybestos and Sonnax 3200 stall built by Britians parts in Houston by Robert who I’m sure you know . All the apply pistons plus pump and valve body I completely rebuilt it with sonnax and transgo . Yes it’s pretty amazing . God Bless

[@chaingun87]

Sonnax claims to have a converter with an updated front cover to help with the deforming issue

[@AutomaticTransmission]

Yes, they do.

[@dallisgilbert8059]

I just bought a 2013 Suburban 1500 4wd 5.3L. Can I use these exact tune specs on it or is this only for a replaced transmission with the new TransGo valves? Thanks

[@DIABLO_4_Tester_Sacramento]

Dear sir, could you please advise. I have stock 6L80 on my 2011 chevy camaro SS. I found UPDATED Valve Body Spacer Plate w/ 8 Check Balls 10-Up. Can I use it on my stock car?

[@paas624]

Wondering why the factory doesn't address these issues at manufacturing new units

[@user-cy9mj7qu8l]

Hello sir … before reaching operating temp my 6l80 doesn’t engage after a complete stop just revs up, after a delay it engages.
And after I come to complete stop I hear a delay shit.
Does this sound like a valve body?
Thanks.

[@millfire517]

Hello, I'm in the process of pulling my 6l80 trans out of my 14 escalade. I was wondering if you have a list of parts i would need to rebuild it right. Thanks

[@orlandosantellano4251]

Where are you located man ? I have a 6L80e in my 68 Cadillac and the code is VSS low output what do. You recommend doing thanks ? I’m in Houston Texas