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Low oil pressure can be caused by multiple faults. A blown gasket, a cracked head, a leak in the line, or even a low level can cause low oil pressure.
One of the causes for low oil pressure in a Chevy Tahoe could be a clogged or dirty oil filter. Changing the filter may get rid of the problem.
first check your oil level. If that is full (8qts) and your low oil pressure light is still on then your piston rings are worn. I would recommend a top engine rebuild.
The light you refer to is not a low oil level light. It indicates low oil pressure. You may have plenty of oil in the engine but you have low oil pressure. Can be weak oil pump, worn bearings, or can be just a defective oil pressure sending unit.
low or no oil pressure
Faulty sensor, low oil level, thin oil, plugged filter, worn bearings, worn pump,...........ANS 2 - A faulty sensor can not cause low oil pressure.
Low oil pressure. Such as a bad oil pump.
Compromised oil system, faulty engine oil rifle pressure 1 sensor.
Compromised oil system, faulty engine oil rifle pressure 1 sensor.
Low oil pressure.Oil level extremely low. Faulty oil pressure sending unit. High mileage/worn engine bearings.
ck oil pressure with gauge, if ok replace oil sending unit there is also a $20.00 dollars oil pressure sensor that sits underneath the engine by the oil pan area(front), this sensor can get old and display the wrong pressure in the system.
low oil pressure can be caused by a blocked or part blocked gause at the bottom of the oil pump, the oil pump itself or a faulty oil pressure sensor unit. Try replacing the oil pressure sensor first as this was the problem with my one.