I have a 2000 silverado 4x4 ex cab short bed truck with a 4 in lift. I have a rebuilt 4l60e from Monster with a 1000 miles on it. The other night it started to slip into 2nd gear. This is the same problem that it had in December when monster gave me the go ahead to return that trans for a warranty repair. I don't have any check engine lights on and the atf is still clean just like before. They tried to tell me that I have a bad pcm but the truck runs great. Is this possible and if so how can I diagnose this for sure. I don't want to throw parts at it.
have the same problem?
Wednesday, February 18th, 2015 AT 3:59 PM