Quote:
Originally Posted by Bigdav160
3-4 clutches burned up?
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What year Denali? '07-'08? I wouldn't think that the purge and vent codes would cause transmission issues. I just saw those codes on a friend's Tahoe. Weird thing is, they also had an alert for "service stabilitrac". It shifted fine to me but it might have an effect on shift strategy, points etc?
On our '04, rpm would flash on the 1-2 shift. It went that way for quite a while until we saved up for a rebuilt that I installed.
Clinebarger is pretty well regarded as an automatic trans oracle here. He helped me spec out the parts and upgrades for our 4L65E. Couldn't be happier with the transmission which is going on a couple of years of my wife abusing it.