2007 Yukon Denali XL Transmission Failure

[swathdiver]

Swathy,


Swathy,

can you point me in the direction of the right Tech2 device please

This one has everything but the case and is out of Hong Kong, not the mainland. This particular seller has sold 36 so far and a few of those are from guys on here.

https://www.ebay.com/itm/Tech2-II-s...hash=item3fb5887699:m:mfsoTsVtchR8b9u8hPL-L-g

 

[2007 Denali XL]

This one has everything but the case and is out of Hong Kong, not the mainland. This particular seller has sold 36 so far and a few of those are from guys on here.

https://www.ebay.com/itm/Tech2-II-s...hash=item3fb5887699:m:mfsoTsVtchR8b9u8hPL-L-g

Much appreciated.

 

[Joseph Garcia]

AliExpress has several Tech 2's, with the case, for under $350. This is where I purchased mine.

 

[2007 Denali XL]

Thanks to everyone who contributed to this thread, here is the final update.

I bit the bullet and finally took it to the main dealer for diagnosis and repair. As expected the transmission had failed, their recommendation was to replace it, which they completed and I just got the car back today.

The remanu transmission cost $3067 (they gave me a $300 coupon off)
Labor to rip out and replace was $2052

The transmission and labor comes with a 100K warranty now.

I guess you could have done this cheaper and maybe repaired the transmission, I don't know and I ran out of time looking at alternatives. Dealer did a good job, work was completed in 48hrs and they even washed it!!!

Hope this helps anyone else looking at the same issue / work. Happy to answer any more questions.

 

[OR VietVet]

I sure wish I knew what failed in the trans instead of the dealer just saying, "trans has failed".

 

[2007 Denali XL]

I sure wish I knew what failed in the trans instead of the dealer just saying, "trans has failed".

Want me to ask for a detailed report? Not sure if I will get one but happy to ask

 

[OR VietVet]

The thing is, if they say trans failed, there has to be a reason. I ran shops for gobs of years and I never went to a customer with a diagnosis like that. If I was the service manager I would have told you that we attached a scanner and took for a roadtest to see if we could duplicate the problem and see with the scanner what may be causing it. If I could see the problem on the scanner then I would have told the customer and then worked up the estimate/quote. If I knew there was still an internal problem in the trans and the scanner did not pinpoint that problem then I would tell the customer,"I can remove trans and disassemble to locate the problem at a diagnostic fee and then give a rebuild quote or replacement quote but the disassembly labor would be extra because just R&R the trans is less labor or I can just replace, without disassembly, and that would save the disassembly and diagnosis labor". For all I know you did that and the service writer did that but that is not what was said in your post. I like options. Trans bad and no options, irks me.

 

[2007 Denali XL]

The thing is, if they say trans failed, there has to be a reason. I ran shops for gobs of years and I never went to a customer with a diagnosis like that. If I was the service manager I would have told you that we attached a scanner and took for a roadtest to see if we could duplicate the problem and see with the scanner what may be causing it. If I could see the problem on the scanner then I would have told the customer and then worked up the estimate/quote. If I knew there was still an internal problem in the trans and the scanner did not pinpoint that problem then I would tell the customer,"I can remove trans and disassemble to locate the problem at a diagnostic fee and then give a rebuild quote or replacement quote but the disassembly labor would be extra because just R&R the trans is less labor or I can just replace, without disassembly, and that would save the disassembly and diagnosis labor". For all I know you did that and the service writer did that but that is not what was said in your post. I like options. Trans bad and no options, irks me.

that makes a whole load of sense and no those options were not offered to me at the dealer. I do feel the issue with the trans was pretty bad and it was at 150k miles which from everything I researched suggest was about the time they go out, however like you I feel everything can be fixed once the problem is diagnosed and then it's just a matter of which repair is the most cost effective.

Main dealers have the choice to provide information like @vietvet suggest but rarely do in my experience.

My Yukon now has a new trans, brakes, rotors, shocks, alternator (upgrade) brake master cylinder. Keep or sell, I will never get more for it than now I think

 

[OR VietVet]

By the way, I was not as clear in my last post about one thing. If I was told to remove trans and disassemble and diagnose I would have also not charged for all that if the end result is that the customer wants a rebuild instead of a complete replacement. It is all the same labor for a rebuild. To charge for that would be a rip off and double dipping on the labor. Not cool! Hopefully all that labor charge reflects a flush of the trans lines and the trans cooler.

 

[swathdiver]

My observations from these forums is that the most common failure on the 6L80 are the solenoids, which can be rebuilt at the kitchen table. After having had my transmission fluid analyzed, the fluid will be changed between 36K and 50K miles from now on and sooner with more towing.