Anker26
NAXJA Forum User
- Location
- Knoxville Tn
I replaced my pcm yesterday and everything came to life (sensors, relays, guages, etc). Now I have a new issue. The part numbers on the pcm's don't match. The one that was on my cherokee is P56041 277AD and the one that I purchased from a salvage yard is P56041 280AD. The yard says it should interchange with no problem. I called my local dealer and they said that the 280AD had been discontinued and that is all they could tell me. I do know that both part numbers belong to a 97 4.0 automatic which is what mine is. How can I verify that the new one is ok. I don't want to destroy a sensor or something by attempting to run the engine.