Steps to extend the life of your 6L80. 1. Disable AFM (DOD) 2. Disable torque converter lock up from 1st to 4th gear. 3. Install a Sure Cool transmission cooler by-pass. 4. Install a heat shield on the exhaust pipe that runs right under the transmission pan.
@@resid3nt get an hptuners MPVI. You can do the torque converter and disable the AFM. A tuner is going to charge you 500-600$. The hptuner will pay for itself in the first use. There are plenty of how to on TH-cam.
I used your DOD Delete videos last year to fix my truck, will probably be watching this one a few dozen times in the future too(hopefully not, but probably).
Threw in a ctsV torque converter in my tahoe at 75k miles , no issues i couldnt justify the 1500 price tag for my daily NA L83. Hopefully this ctsV TQ holds up with the abuse i throw at er 😄 haha
I installed the bypass two years ago and I haven't seen the transmission temperature go above 145 degrees since. It usually stays around 120 degrees. Just turned 180,000 miles and going on a 2016 silverado. Just a matter of time before the converter goes. I'll do the upgrade when I have to. I've been putting the transmission in manual mode in gear 5 to keep the AFM from engaging for about 3 years now. The truck drives so much nicer when that ridiculous AFM isn't on.
Nice video indeed. My old torque converter seems to be doing fine so far on my 2015 Silverado. Knock on wood. Lol. I have around 107,400 miles on my truck
Thank you! That is right around when they often fail. I replaced mine at 107K and now at 152K and no issues. Been running the sure cool upgrade since around then as well.
@@TheSundaeDriveI am hoping mine doesn't go out then. Lol. I don't do much hauling trailers or towing heavy loads and whatnot or heavy loads. How much does a job like this cost roughly to have a new torque converter replaced if mine goes bad? Thanks.
Unfortunately when the torque converters fail they often clog the pump which burns out the transmission so normally an entire transmission is required. heat seems to be the killer so I would recommend a new torque converter and the sure cool upgrade.
I had a guy do a L96/6L80 swap into my 91 Blazer. I'll spare the story but I'm left with nobody to ask about issues I'm having. I have no way to monitor temps. A common mod for these is adding a rpm gauge and moving the gas gauge to an open hole; some have a clock. I'm going to look into a trans temp gauge now. What brought me here is that my trans sometimes acts like it's in neutral and then suddenly bangs into gear when I'm taking off. I'm not sure what i should be looking into
At least with the stock torque converters when I install then I can spin them by hand and get them in so that the ridges on the back of the torque converter rub on the bolt heads going into the pump on the bellhousing, thats how I can tell its in far enough
Billet converters really are the only solution, stock converters are stamped steel and the ears for the bolts are welded on created more heat against the clutches inside the converter
The stockish torque converters normally will last around 100K it seems. They may last longer with better cooling tho. A billet torque converter should lastonger but you still need to do cooling upgrades. The 6L80E is the same as far the torque converter is concerned as far as I know. My truck technically has the 6L80e
@ I already upgraded the cooling thermo bypass and put Amsoil signature tranny Fluid when I bought the Tahoe at 60k. Now it has 80k. I’ll probably buy the TC Reman torque converter from autozone . I’ll be installing it myself . Thanks for your videos
At the very least ALWAYS replace the $1 input shaft turbine seal gm #24219390. They get hard from the heat and cause the tcc to slip amd burn up the transmission
Y’all need to upgrade your radiator to 3 in aluminum and a 40 k I’m in AZ and my truck on a super hot day hauling or beating on it never reaches 180. 160-170 at most Ashe’s that’s 115 degree weather
Steps to extend the life of your 6L80.
1. Disable AFM (DOD)
2. Disable torque converter lock up from 1st to 4th gear.
3. Install a Sure Cool transmission cooler by-pass.
4. Install a heat shield on the exhaust pipe that runs right under the transmission pan.
Good tips and list!
How do you got about disabling the tq lockup on 1st through 4th?
@@resid3nt get an hptuners MPVI. You can do the torque converter and disable the AFM. A tuner is going to charge you 500-600$. The hptuner will pay for itself in the first use. There are plenty of how to on TH-cam.
@@maldodannyhptuners and bluecat software which is free.
@@maldodannyby chance you know any links to it?
I used your DOD Delete videos last year to fix my truck, will probably be watching this one a few dozen times in the future too(hopefully not, but probably).
Lol glad to help! Transmission removal will be getting uploaded in a few weeks.
I have just over 144,000k miles on mine still going strong!
Threw in a ctsV torque converter in my tahoe at 75k miles , no issues i couldnt justify the 1500 price tag for my daily NA L83. Hopefully this ctsV TQ holds up with the abuse i throw at er 😄 haha
I installed the bypass two years ago and I haven't seen the transmission temperature go above 145 degrees since. It usually stays around 120 degrees. Just turned 180,000 miles and going on a 2016 silverado. Just a matter of time before the converter goes. I'll do the upgrade when I have to. I've been putting the transmission in manual mode in gear 5 to keep the AFM from engaging for about 3 years now. The truck drives so much nicer when that ridiculous AFM isn't on.
Nice video indeed. My old torque converter seems to be doing fine so far on my 2015 Silverado. Knock on wood. Lol. I have around 107,400 miles on my truck
Thank you! That is right around when they often fail. I replaced mine at 107K and now at 152K and no issues. Been running the sure cool upgrade since around then as well.
@@TheSundaeDriveI am hoping mine doesn't go out then. Lol. I don't do much hauling trailers or towing heavy loads and whatnot or heavy loads. How much does a job like this cost roughly to have a new torque converter replaced if mine goes bad? Thanks.
Unfortunately when the torque converters fail they often clog the pump which burns out the transmission so normally an entire transmission is required. heat seems to be the killer so I would recommend a new torque converter and the sure cool upgrade.
Costs varies depending on if you are 2wd or 4wd
@@TheSundaeDriveDang! That will definitely be an expensive repair. Thank you for the information.
I had a guy do a L96/6L80 swap into my 91 Blazer. I'll spare the story but I'm left with nobody to ask about issues I'm having. I have no way to monitor temps. A common mod for these is adding a rpm gauge and moving the gas gauge to an open hole; some have a clock. I'm going to look into a trans temp gauge now. What brought me here is that my trans sometimes acts like it's in neutral and then suddenly bangs into gear when I'm taking off. I'm not sure what i should be looking into
At least with the stock torque converters when I install then I can spin them by hand and get them in so that the ridges on the back of the torque converter rub on the bolt heads going into the pump on the bellhousing, thats how I can tell its in far enough
Did you have to shim this tc
With the smallest shims yes. But will need to measure for your vehicle to be sure.
@@TheSundaeDrive did you use the smallest shim
Billet converters really are the only solution, stock converters are stamped steel and the ears for the bolts are welded on created more heat against the clutches inside the converter
It’s not a matter of if they fail it’s a matter of when
Agreed!
I definitely prefer doing it in the vehicle than out of the vehicle only because I don't want to have to do extra work.
Is replacing the transmission pump very invasive to a point a trans shop should do it?
Yes
You doing good job video but you need more light or more bright more vero vicion it's look too dark
What would you recommend for my 6l80e? 2018 5.3 Tahoe Should I upgrade to a 6l90e converter or get a billet converter from oriellys/ autozone . Thanks
The stockish torque converters normally will last around 100K it seems. They may last longer with better cooling tho. A billet torque converter should lastonger but you still need to do cooling upgrades. The 6L80E is the same as far the torque converter is concerned as far as I know. My truck technically has the 6L80e
@ I already upgraded the cooling thermo bypass and put Amsoil signature tranny Fluid when I bought the Tahoe at 60k. Now it has 80k. I’ll probably buy the TC Reman torque converter from autozone . I’ll be installing it myself . Thanks for your videos
@@JoeyBrioso-l9m did you buy the TC reman? I’m thinking of going with one for my 6l90.
@@johnnybobgoldstein2823 yes I did purchase the tc reman from autozone. 20% off free shipping and $175 core. It should arrive this Monday.
@@TheSundaeDrivewould you know the stall speed for the 6l80e and 6l90 torque converter?
At the very least ALWAYS replace the $1 input shaft turbine seal gm #24219390. They get hard from the heat and cause the tcc to slip amd burn up the transmission
165k. 2014. Here for the lockup failure of death 🤦♂️
The circle D torque converters are trash. Installed one in my 2018 Silverado 1500 and it broke within 6 months
Oh really? How did it fail? Stock power levels?
@@TheSundaeDrive I'm eager to hear as well.
Y’all need to upgrade your radiator to 3 in aluminum and a 40 k I’m in AZ and my truck on a super hot day hauling or beating on it never reaches 180. 160-170 at most Ashe’s that’s 115 degree weather