my check gauge light on jeep 2001 Cherokee sport come on and I notice oil pressure drops to zero on gauge at idle, but picks back up after revving engine?
5 Answers
Hook up a mechanical gauge to the engine and make sure that is the accurate pressure you are getting. You may have sludge buildup on the oil pressure sending unit or valley causing a false reading.
It could also be low idle RPM's, high heat, thin oil and worn bearings.
What kind of mileage on the vehicle?? Like tenspeed said, this could just be a worn engine. If you have worn bearings or oil pump, the symptoms would be the same.
I has a problem with my 2001 jeep Cherokee sport oil pressure check gauge light been coming on it goes on 0 when it is setting steal but when I move it goes goes back up and I have a new oil sending unit on it and it still doing it but it drops I smell oil when my check gauge light comes on I have no idea what's wrong please somebody let me no
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