
IF your oil pressure drops below 4 PSI with this model engine it will cut the signal to the fuel pump relay thus shutting off your fuel pump. So in theory if your instrument cluster oil gauge reads zero at times your truck will shut off.Click to see full answer. Likewise, what would cause oil pressure to drop at idle?Low oil pressure at idle only, will most often mean that the engine is low on oil. As more power is applied to the engine via acceleration, the pressure builds up inside the engine. High oil temperature can cause low oil pressure. A defective oil pump can also lead to low oil pressure at idle.Also, what does it mean when you lose oil pressure? Any leak within the oil passages of the engine can also result in low oil pressure. Some of the more common causes of an internal oil leak include worn piston rings and worn valve seals. In some cases, if the valve guides have excessive clearance, the excess space can lead to a reduction in oil pressure. In this manner, can you drive a car with low oil pressure? No. Driving with low oil pressure or low oil in the system can ruin the vehicle’s engine, completely breaking the motor. If you notice the oil light on while you are driving or while the car is running, you should stop driving and have this problem addressed as soon as possible.What are the symptoms of a bad oil pump?The most obvious sign of a bad oil pump is a low engine oil pressure reading. A bad oil pump loses its ability to pump and pressurize motor oil throughout a car’s engine, a condition that can read as a low oil pressure reading on an oil pressure gauge.
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