6L80 full of metal is saved with HP Tuners (TCC failure) 

As a retired mechanic I could not understand why GM wanted and let torque converter slip 20 RPM's in a normal position and expect the torque converter to Last just don't make sense !!engineering stupidity gone to seed I understand it takes the smoothness out of it button longevity lives over comfort in my book lock that baby up and let her rock..

Also good idea to bypass transmission cooler line thermostat.thats one of the biggest reasons fluid overheats

Excellent GM warranty comments! Very valuable nuggets of info.

This helped me diagnose and fix a 14 gmc sierra 6.2l 6l80. Thankyou. Priceless info.

This is great. Getting my 6L50 tuned this week to get rid of the slip and shudder in 5th and 6th.

I am so glad I ran into this channel, I was about to buy a new converter but since I just got HP tuners will try this. Thank you much

I'm getting ready to do this. So glad I saw your video. Thanks

I just got this loaded onto my 2014 Express 3500, thank you! Hoping it works well towing too

Keeps us updated on the life of the unit tested here. Good video with data and suggestions!

Hell we got 2 of these in my friends tranny shop right now they got so much metal they actually stopped up the filters and stopped moving. He rebuilds his tranny and we also update the converter with a converter with a billet back cover

This is phenomenal

you can also click on the KPA and change it to PSI. THANKS FOR THE VIDEO!

Just excellent 👌

Metal shaving is usually 5th 6 OD drum clutches plates or 3-5 R drum failing also.

what a surprises !! nice job man i have chevy impala 2014 new modal with 6t70 transmissions it does this like crazy when every i drive in high way around 65-70 mph and also when shifting its shudder do you think this will work when do programing stuff?

BlueCat transmission tool works great with hptuners. Gear and tire changes also require transmission tunning.

2017 Yukon XL. 80K miles. Trans fluid and filter serviced @ 70k. Seems to be running smooth. No shift problems. Id like to tune it as precautionary measure but am not familiar with hptuners and not necessarily interested in purchasing the device and software (not sure if sold together or how that works). Should most reputable transmission specialists or maybe a performance shop have access to these tools and software to perform this service for me?

I was wondering if you could help me out, i have a 2013 Caprice with a cam and I'm experiencing some surge created by the tranny settings and i want to decrease the shift point a little lower which should fix the issue, I'm hoping lol, can u help? Thnx

Anyone in new york, NJ or Ct doing this? Does this really work? 2019 suburban with this issue lots of shudder

Careful as too much pressure, yes it'll hold things but it can always prematurely wear out the Crankshaft thrust bearing.

Thanks for the video.

Mine just started slipping today, going to rip this pos trans and go to a mad dog hopefully this will resolve my issue, man i miss the manual transmission days.

Do not follow the 6L80 tuning advice he gives here. EG he can be seen at 29:11 to be completely wiping out the Line pressure to PCA trans calibration table probably because it’s called “Desired Pressure” and he thinks he desires max pressure. Scary he is giving advice. See there is a pressure regulator piston in the valve body that allows a pressure control solenoid to control line pressure fed to all the other PCS for shifting. That regulator is spring loaded, controlling the offset, and the diameters of the regulator pistons control the gain. On some OS versions it uses gain and offset for the TCM to understand the relationship of pump pressure to line pressure. In others it uses the Desired Pressure table to understand the pressure produced by the relationship between the line pressure to PCA pressure, this is called the calibration and can replace the simple offset and gain formula with a table. Yeah, so if you didn’t know that, you shouldn’t be touching it. The people that should be tuning this are TransGo and Sonnex who should have a mechatronics lab with a running 6L80 on the bench. They would need to do so because they manufacture upgraded pressure control regulator kits.

Howdy from Central Texas (Waco). Where in South Texas? I have a 2010 Escalade ESV 6.2l 6l80 did this and would like to attempt a tune before $3-6k. One owner, 200,000 miles, slipped couple times and that bouncing tack. Or do you know someone closer to me that could attempt this for me.

How do you get someone to hp tune your truck who does it

Would you be able to tune an AF33 transmission with this software? I think it's absolutely insane how they "want" the torque converter clutch to slip with the clutch applied ... like, how dumb do they have to be to think that's a good idea? You would never tell a new manual transmission driver to rest their foot slightly on the clutch for any reason, and in fact, people are told not to. Either downshift if it needs more torque or needs to reduce vibration. Sadly my AW-55-50SN has this partial slip feature but it's more primitive and pretty easy to defeat by driving in 4. I just wish I could defeat it altogether.

Wood this help whta happen is when coming to a stop feels like somebody gives you a lite rear end kick and does have a slip when only costing low speed 1 2 gear will this elimate that?

Does the after tune feels like the 6l90 TC or the hd models now ?

Does 6l90 and 6l80 have the same filter

So much learned here, my 2017 8L90 started shutter at 39k miles about a year ago. Hadn't a clue, thought I had a loose wheel. Last week at 44k miles it came back for 60 miles. Can my 8L90 be saved? I bought Shutter Fixx, which I was going to add half. It would be in there if it had a filler tube. Like everyone else, I feel burnt by GM. Any tips to avoid as many issues as possible? I drove 600 miles this week without noticing any shutter. thx

Couple questions. 2011 Silverado, My tables are quite a bit different on desired pressure by quite a bit. Assuming the values are different based on the X axis numbers at the top of my chart are different. My max pressure tab was the same values as yours and I left that alone based on your comment below. But my TCC desired pressure table, highest value in the lower corner is 42. Guessing I will just duplicate that across the table at 42 being the highest value shown for stock to increase the line pressure. That sound correct to you? I left the max pressure table alone at the 953.

Great video. I have a 15 Sierra that has very minimal slip. 170K miles. Would you recommend doing the same tune to prolong the 6L80? I haven’t dropped my pan yet, fluid is a little dark on the dipstick but nothing crazy. Thank you.

I have a FTI 3200 Stall Triple Clutch torque converter and my 6l80e transmission it's shudder 55 mph. it didn't do it with the stock torque converter. Do you think i need to get tune

What do you feel is a acceptable off target amount? I datalogged mine lastnight and found it was approx 40 RPM above the desired slip, not nearly as bad as the one in your video.

How do you reflash the computer after the new trans installation

I’ve followed this step by step and my lockup is very harsh when this tune is applied, any advice?

Awesome. It doesn’t look that hard at all. Will the same vales work for a 2015 Suburban?

Good comparisons and explanations, but you need to wear protective gloves!

Where are you located? I need to come see you lol. My 2018 Silverado surges bad around 50 mph

Did you eliminate the v4 mode?

How do I get ahold of you on the phone?

Could you not flush the transmission and put in a new torque converter?

Where are you located?

You are wrong about that TCC apply ramp rate. A rate that is smaller will apply it faster.

Can I do same thing on 8l90?

Have a 2016 Silverado with 109xxx on now changed fluid at 80xxx and disabled 1,2,3d lockup is all I did and disable dod doesn’t slip or anything but Would increase line pressure hurt any thing or just help prolong the transmission ?

From what it looks like, why isnt this GM covering aaaaaaaall these transmissions? Clearly theyre aaaaall going to fail.

I can barely hear anything

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