- Apr 13, 2012
- 3,270
- 1,551
Oh OK, well if it's been recently rebuilt then yea, should be something minor. Try running the codes on it, might give you a clue. My old trailblazer SS, when I got the ****** fluid flushed and changed, lost 1st gear afterwards. Turned out to be that one of the harnesses wasn't connected all the way. Unhooked and rehooked the harness up, and it was back to normal after that. Had a bunch of stored codes because of that (although no check engine light). Worth a look.The trans only has like 8k miles on it though so i don't think that's it. Reading online it's saying it could be a number of things. dirty ****** fluid (not likely), linkage not hooked up right, bad solenoid, sensor, etc