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derek b

derek b 8/2/2010

2001 Jeep Cherokee Sport 6 Cyl 4.0L

Engine

what causes the oil pressure to drop while you are driving?

oil pressure is fine when i first start it up

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HouseCallAuto

HouseCallAuto 8/2/2010

First thing to do is replace the sending unit for oil pressure and see if any change. If no change it means that you really have low oil pressure. Oil thins out as the engine reaches full temp and the pressure does decrease, but it should not be turning on a warning lamp.

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HouseCallAuto

derek b 8/2/2010

warning lights are coming on but only idle speed

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