The most likely cause of a car losing oil pressure when it warms up is a problem with the pressure relief valve, which regulates the oil pressure to ensure that there is enough pressure to circulate oil throughout the engine. When oil pressure is low, not enough oil is being distributed to the engine, potentially causing engine failure.Continue Reading
To a certain extent, it is normal for a car to have low oil pressure when first starting. However, within 20 minutes, the oil pressure should be regulated, and the needle on the oil pressure gauge should rest at the midpoint. If the oil pressure remains low, have the oil pressure relief valve inspected by a mechanic.
It is also possible that the oil pump is malfunctioning, which is responsible for regulating the flow of oil. The resistance to the flow of oil is what causes oil pressure. If the oil pressure is low, the fuel flow is low. This is a major problem that needs to be fixed immediately, since the engine needs to be lubricated adequately to function properly.
Other causes of low oil pressure include excessive bearing clearance, a blockage in the oil delivery lines, a worn crankshaft and air in the oil pump.Learn more about Engine Oil
Test an oil pressure unit using a multimeter that is set to resistance with the engine off. Test the unit again with the engine running. The process takes only a few minutes.Full Answer >
A Chevrolet oil pressure sending unit is a type of car part that sends oil pressure information from the engine to a gauge or light on the vehicle's dashboard. When the oil pressure rises, the needle on the oil pressure gauge moves toward the right, and it moves to the left when the oil pressure decreases. When the oil pressure becomes too low for safe operation, the pressure sending unit turns on a warning light on the instrument panel.Full Answer >
The symptoms of a bad oil pump are many, and some of them include abnormally noisy hydraulic lifters, valve train noise, a higher operating temperature in the engine, a decrease in the oil pressure of the car and a noise in the oil pump. An oil pump is one of the components of a car that does not require frequent servicing and repairs, but when it fails, it can cause catastrophic impact on the performance of the car.Full Answer >
Typically, an oil pressure switch is located close to the oil filter or just under it. It is generally necessary to remove the oil filter to access the oil pressure switch. This requires draining the oil tank and changing the oil.Full Answer >