TC shudder just started...

[PA-WOODCHUCK]

Flud was changed when purchased at 50K miles per TSB now at 95K. happens even in trailer tow mode. Does GM assist in repair? does additional damage occur if driven? Will another fluid change help? Please educate me?

BTW I have
2016 Yukon 6.2 and 8speed. I think TC just started to shudder, and how could I check this with Solus Edge(18.3 software). No faults yet... is there a way to record what TC/TCC is doing and how?

thanks

 

[NickTransmissions]

Flud was changed when purchased at 50K miles per TSB now at 95K. happens even in trailer tow mode. Does GM assist in repair? does additional damage occur if driven? Will another fluid change help? Please educate me?

BTW I have
2016 Yukon 6.2 and 8speed. I think TC just started to shudder, and how could I check this with Solus Edge(18.3 software). No faults yet... is there a way to record what TC/TCC is doing and how?

thanks

Look at the TCC efficiency, duty cycle and slip (rpms), specifically.

There's class action suits against GM on those things. Pull the trans and replace the converter - contact GM to see if there's a recall or warranty you could claim.

 

[mics]

Excuse my ignorance… How do you know it’s a TC shudder and not something else?

 

[PA-WOODCHUCK]

Excuse my ignorance… How do you know it’s a TC shudder and not something else?

Dealer checked it, but going to have local trans shop pull pan and check. Both say there is newer fluid. shop road-tested vehicle. I'll update. Trans shop


Dealer also said fluid used in TSB only lasted for about 4 years, hence the newer version of fluid.

 

[waterman]

Look at the TCC efficiency, duty cycle and slip (rpms), specifically.

There's class action suits against GM on those things. Pull the trans and replace the converter - contact GM to see if there's a recall or warranty you could claim.

Sorry to hijack thread, are the tsb notices the responsibility of the dealer to inform the customer or is it the customers responsibility to see if there any tsb notices?

 

[PA-WOODCHUCK]

Not the best photo due to shop lights, but doesn't think it's self-destructing. Doing new filter, flush, newest fluid, friction modifier, then drive.

 

[Ibustbravo]

I'd replace the torque converter before it becomes a 6K job.

I just approved a $5400 repair for my transmission.

 

[NickTransmissions]

Not the best photo due to shop lights, but doesn't think it's self-destructing. Doing new filter, flush, newest fluid, friction modifier, then drive.

Looks like a fair amount of burnt clutch material in that fluid to me.

 

[PA-WOODCHUCK]

I'd replace the torque converter before it becomes a 6K job.

I just approved a $5400 repair for my transmission.

If mine ever needs the TC, it's getting full rebuild + update. not paying to take out 2 times!

 

[Ibustbravo]

If mine ever needs the TC, it's getting full rebuild + update. not paying to take out 2 times!

Yea, I get not everyone wants to do that themselves.

 

[PA-WOODCHUCK]

UPDATE: did flush and filter with current spec fluid. Lines were flushed along with 12+ qts and used Ford friction modifier which shop felt better choice. 2500 miles now and all OK!

Question for NickTransmissions when in trailer mode does TCC get locked up and if so what gears?

thanks

 

[Samiam5]

Just got the trans replaced in my 16 xl Denali. Started with the shudder said it was torque converter luckily warranty company approved whole replacement on the trans

 

[NickTransmissions]

UPDATE: did flush and filter with current spec fluid. Lines were flushed along with 12+ qts and used Ford friction modifier which shop felt better choice. 2500 miles now and all OK!

Question for NickTransmissions when in trailer mode does TCC get locked up and if so what gears?

thanks

Not sure off hand with respect to the tow-haul mode TCC apply strategy for the 8Ls as Im not familiar with them. That said, glad you are back in business with a reliable vehicle!