Trailblazer from D a roll on the Highway. HELP!

RareM · July 6, 2014

I have attempted to look for similar posts but non of which were exactly like mine.

I was on the Highway driving and my truck went from D to a roll with no sound. I just heard the RPMs Rev-ing up, I pulled over put it in Reverse and back into drive and i was fine again. This occasionally happens, so I have to dive in A4WD to avoid from a rolling stop. But as long as I drive it in R for 5-10 feet, its fine for a while.

There are no sounds, no check engine lights, no issues with shifting (knock on wood) and fluids are topped off, it has 148,000 on it.

Could it be TCCM? I don't want to spend the $200+ if its not going to fix the problem.

RareM · July 6, 2014

Oh Ya its a 2002 Trailblazer

avo · July 7, 2014

i have an envoy 2003 with a 6-cylinder engine and 4l60E trasmission, i rebuilt the transmission 4 months ago, after 2 months i had a problem with the generator(alternator) so i was obliged to jump the car for few times, after i repaired the generator, the car was in limph mode and the shift A solenoid was damaged. i repaired it. 1 month later the transmission pump was broken, i repaired it also. and now i have a delay during the shifts from 2nd to 3rd and a little of slipping, i replaced the solenoids after 15 minutes the solenoids are damaged again, and the problem has returned. someone has told me i need a new transmission. can anyone help me with this problem? is it an electrical problem? or it's the transmission? how i can solve it? it's been 4 months i have problem with this transmission.