racephan6
New Member
- Joined
- July 9, 2001
- Messages
- 9
- Reaction score
- 0
- City, State
- Columbus, Ohio
- Year, Model & Trim Level
- 92 Eddie Bauer 4x4
I have a 1992 4WD Explorer with 4ALD automatic transmission. It sat for 6 months. When I recently started it, it began to run ok. I took for a short drive to make sure everything was ok and I noticed a grinding sound. When I got back and put it in P, the engine revved up to 3500RPM and stayed there. When I switched back to R, OD, D, 1, or 2, the RPM returned to 1500RPM. N also caused the RPM to raise to 3500PM. I shut off the engine and looked under the car and I had alot of leakage from the rear end housing cover plate. The transmission fluid level is ok. Is this Park/Neutral sensing switch problem or a vacuum diaphragm problem or something else? After sitting for 6 months, the engine is running fine, it is a transmission/driveline problem. Any suggestions.
