The oil pressure gauge on my truck has jumped to 80PSI while running. What caused this? Is it a bad pressure switch or is it the gauge? If it is the switch where is it located on a 2006 Chevy truck with a 6.0?

High oil pressure

JoeMario April 6, 2012, 4:13pm 6

I’m curious. How could a defective or plugged oil filter by-pass valve cause an increase in oil pressure if the oil pressure relief valve is functioning correctly?