I have a 2001 grand jeep cherokee Loredo 4.0 L6. I need help understanding why the jeep will crank but not start. I have no check engine light on and i had a diagnostic test ran on it and the shop couldn't find any issues either. To me it sounds like a simple issue to fix but i cant seem to find the reason it wont start. Does anyone have any ideas or know what the cause of it not starting may be?
Old fart with a wrench
Welcome to CF!
Check the CPS for a pulse. If the PCM doesn't get a reference pulse, it won't energize the ASD relay and turn on the fuel pump, spark and fuel injectors.
Check the CPS for a pulse. If the PCM doesn't get a reference pulse, it won't energize the ASD relay and turn on the fuel pump, spark and fuel injectors.