I have a 2013 Yukon xl1500 Denali. 5th and 6th gear are gathering in the bottom of my transmission oil pan. I just purchased a used transmission. Yard says it came from a 2013 Tahoe. Am I going to need this programmed to operate in my 2013 Yukon XL AWD?
Replacing Transmission
- Thread starter mklucas53
- Start date
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at the very least you will need to do the vin relearn,
I was under the impression that the awd transmission has some kind of difference (internal) but I could be wrong.
before you install, it is recomended to use a billet converter (stock stall) that would be easy to do before it goes in
@NickTransmissions
Check to make sure the TEHCM parts numbers are the same or swap your pre-existing TEHCM over to the replacement unit if not then run a fast adapt relearn before trying to drive it.
See my 6L80 Info thread for more info - link is in my sig line.
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petethepug
Michael
Sounds like you’re on track. Same M/Y swap is a good thing for compatibility and limitations past or future trans might impose.
www.tahoeyukonforum.com
Interwebs state the 2WD & AWD 6L80 are the same but that’s the web for you.
** Look! Here’s a YouTube that shows 2WD & 4WD NOT the same on 6L80 **
Of Course my favorite quote from above “Failure to Do So Will Destroy the Transmission”.
Can I put a 2013 6l80 into my 08 Yukon?
Hello Everyone, The transmission on my 08 Yukon XL Denali is finally showing its age. Reverse has been slipping for a while but can still push her around on level ground. A couple of days ago my wife was driving the kids home from town and it acted like it went into limp. When I got home and...
www.tahoeyukonforum.com
Interwebs state the 2WD & AWD 6L80 are the same but that’s the web for you.
** Look! Here’s a YouTube that shows 2WD & 4WD NOT the same on 6L80 **
Of Course my favorite quote from above “Failure to Do So Will Destroy the Transmission”.
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Reprogramming is necessary only if the operating system versions between two 6L80s (or any two otherwise same 6L variant units) are different. The part number on the TECHM denotes operating system version and i think there's 15-20 different versions for 6L80s. It the most critical check for the OP to confirm or deny when shopping for a used unit, unless he's capable of doing the programming work.Sounds like you’re on track. Same M/Y swap is a good thing for compatibility and limitations past or future trans might impose.
Can I put a 2013 6l80 into my 08 Yukon?
Hello Everyone, The transmission on my 08 Yukon XL Denali is finally showing its age. Reverse has been slipping for a while but can still push her around on level ground. A couple of days ago my wife was driving the kids home from town and it acted like it went into limp. When I got home and...
Interwebs state the 2WD & AWD 6L80 are the same but that’s the web for you.
** Look! Here’s a YouTube that shows 2WD & 4WD NOT the same on 6L80 **
View attachment 426401
Of Course my favorite quote from above “Failure to Do So Will Destroy the Transmission”.
If the part numbers on the TEHCMs match and the replacement is within the same year as his existing trans, the replacement should be electronically compatible with his vehicle and so the only thing he needs to do before a test drive is a fast adapt relearn.
Whether the replacement trans is actually healthy inside, is another matter...
strutaeng
Full Access Member
Given the age of the junkyard transmission and mileage, why not get that one rebuilt?
The other one is likely going to have the same or similar issues as yours.
But in that case, just get yours rebuilt instead. Maybe it's a budget thing? Rebuilding transmissions is not cheap, which I completely get.
The other one is likely going to have the same or similar issues as yours.
But in that case, just get yours rebuilt instead. Maybe it's a budget thing? Rebuilding transmissions is not cheap, which I completely get.
petethepug
Michael
Having an extra trans sitting in the garage, working or not is a good thing. It separates the install from the trans repair process. When it’s 5-$6k and down time is involved, that’s key.
Nothing better than being able to decide on dropping your extra trans off with the repair Dude because he’s got time. Even better to set it up for the install a month or two later while still driving the offending vehicle around.
Nothing better than being able to decide on dropping your extra trans off with the repair Dude because he’s got time. Even better to set it up for the install a month or two later while still driving the offending vehicle around.
It’s a money and time thing. Need the rig on Monday. Everybody is booked book booked. The core charge was 250. So I kept it and will rebuild it anyway. It will be my warranty lol
Check my 6L80 Info thread (link is in my signature line) for parts lists, procedures and resources including links to ATSG and ATRA manuals, my videos as well as TSBs and other relevant content.
These transmissions are not that difficult to build provided you acquire the tooling you need. I have a 6L80/90 special tools vid on the channel that shows you exactly what you'll need to overhaul those units. Going to be releasing more 6L vids on the channel in May.
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