Check the oil pressure with a mechanical gauge if normal replace the oil pressure sending unit abnormal such as the high oil pressure could be the caused by the oil pump pressure relief valve not opening-
May 14, 2009 at 3:16 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.