Oil pumps have a pressure release valve, but it is very rare that they go bad. When they do, the oil pressure goes really high and I've even seen oil filters expand. What you need to do is check to see if the gauge in the car is correct. To do that, you need to rent a mechanical oil pressure gauge. Most parts stores will rent or lend one to you. Then, you remove the present oil sending unit from the engine and screw in the mechanical gauge. At an idle, pressure should be around 15 psi. As the engine rpms increase, the pressure will increase with it. It shouldn't really exceed 80 psi.
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Tuesday, March 19th, 2013 AT 1:15 AM