The oil relief valve is within the oil pump, not serviceable. If bad oil pump must be replaced. I woul;d suggest hooking up a mechanical oil pressure gauge, remove the electric oil sender unit(use that fitting hole) and see what readings you get, depending on the quality of the gauge the readings may vary a bit. Hot oil pressure usually somewhere in the 40-60 psi range. Or bolt up another oil filter see what happens.
Tuesday, January 15th, 2008 AT 8:54 PM