Can't seem to figure this out and three shops struck out. It started the day I got it back from shop #1 manifold gasket repair f-up.
The jeep would start bucking at exactly 2000 rpms, not above or below but on 2000. It does it in 3rd, 4th, and 5th gear. If you are going up a slight incline with moderate pressure on the gas and the rpms hit 2000 then it will start bucking till you either slow down or upshift.
No codes related to it unless the recent evap leak (0422) has anything to do with it but I doubt it.
Any ideas welcome. I'm trying to sell this jeep but need to fix this before I do.
1999 TJ
2.5L
5 spd
108k