GPI000
NAXJA Forum User
- Location
- South Carolina
First post, Hey all. 1996 Cherokee Classic 4WD, 4.0. Stock. Transmission will not shift when placed in Drive position. This all started after cleaning the neutral safety switch due to no reverse lights and hard to start. Cleaned switch and installed. Started in park and reverse only and reverse lights worked but no longer shifts. Disconnect TCU and will manually shift fine. Pulled NSS again and verified all was good and still no shift. Replaced with a new unit and no shift. I tried to test all wires as best I can without a good diagram available and checked all connections. I have a second TCU that changed nothing. Grounds at the engine block all cleaned and good. TPS, VSS, and solenoids have also now been replaced with Dealer parts. No check engine lights, engine runs fine. Any ideas? What am I missing?