How much oil pressure does a 1999 Chevrolet 5.3 silverado have?

A 1999 Chevrolet Silverado with the 5.3L engine should have an oil pressure of between 10 and 50 PSI at idle when the engine is at operating temperature. This is a range, and the exact pressure will vary slightly depending on engine wear, oil viscosity, and oil temperature.

Important Note: This is just a general range. Always consult your owner's manual for the specific oil pressure specifications for your particular vehicle. Low oil pressure can indicate serious engine problems, so if you're concerned, have your vehicle checked by a qualified mechanic.