WOULD IT BE THE GAUGE. CAR RUNS FINE.
Chevrolet Q&AAsk Your Question
2004 Chevrolet Monte Carlo Question: WHY IS THE OIL PRESSURE GAUGE PAST THE HIGH MARK.
Answer #1pushrod October 26, 2012, 06:07Master
LS? SS? 3.4? 3.8? OH WELL EITHER WAY FIND AND UNPLUG OIL PRESSURE SWITCH,OR SENDING UNIT NEAR OIL FILTER, GAUGE SHOULD NOW READ 0 WITH KEY ON.
IF NOT COULD BE SHORTED WIRE OR BAD GAUGE. CAN SCAN OR HAVE B.C.M. SCANNED TO CHECK DASH CLUSTER.
B.C.M. = BODY CONTROL MODULE. GAUGES DO GIVE TROUBLE! ONE MORE THING, DOES THE GAUGE MOVE AT ALL? AT ANY TIME KEY ON OR OFF.
Answer #2Greg's Orange Auto (13671 Answers) , Orange, CA - (714) 361-9386globalhelper October 26, 2012, 06:27Master
most likely the oil sending unit is malfunctioning
Answer #3your.mechanic October 26, 2012, 07:28Master
check oil pressure with gauge....too high = restriction in oil galley...normal = bad sensor or wiring.
Answer #4Mr. Whizard May 10, 2014, 05:29Technician
Common Problem with these. They can be repaired here: http://www.mrwhizard.com