It is very uncommon for an oil pressure relief valve to fail. With that said, I question the pressure switch or how high the pressure is actually getting. What I suggest is to rent a mechanical oil pressure gauge and check pressure using that. Basically, you remove the oil pressure on the engine and install the one for the mechanical gauge. Let me know how high the pressure is actually getting.
Saturday, February 7th, 2015 AT 11:57 AM