2004 Jeep Liberty Q&A
2004 Jeep Liberty Question: Can AC Compressor cause other problems?
We were told our AC Compresser was going. The other day on my way home, my engine light came on, then my battery light. I drove the last half mile home and when I parked, I lost my coolant. Refilled that and now when I start the car it makes a grinding/grating kind of sound. Not whining and the belt looks good. What now? And would an AC compressor, when it is off cause all that noise? Got codes of P0137, P0138, P0157, P2503 - DebandMark
It sounds like the a/c clutch locked up while you were driving causing the serpentine belt to either slow down or stop altogether (should have been a loud noise also), which would not allow the alternator to turn (light came on- not charging) and the engine to overheat (loss of coolant). Your diagnosis of the a/c compressor failing looks like it was dead on. The noise is the clutch coming apart on the inside. - Tyreguy