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BOBBYSS, Master Technician
Category: Chevy
Satisfied Customers: 17095
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2004 chevy suburban: z71..oil pressure gauge..Changed oil..2 quarts

Resolved Question:

Have a 2004 chevy suburban z71 with the oil pressure gauge so high it is almost 180 degrees over normal.

Changed oil in it a month ago, and it seems to not changed in the last few weeks. Had to put 2 quarts in it today. What is going on?
Submitted: 6 years ago.
Category: Chevy
Expert:  BOBBYSS replied 6 years ago.
HelloCustomer is there any noise from the engine? How many miles are on the vehicle?
Customer: replied 6 years ago.

Not anything unusual like a clanking or bad valve sound. Noticed a little blue smoke like oil burn coming out of exhaust.


Expert:  BOBBYSS replied 6 years ago.
Does the gauge jump this high as soon as the vehicle is started?
Customer: replied 6 years ago.
Expert:  BOBBYSS replied 6 years ago.
Okay. It sounds like you may have a problem with the oil pressure sensor. It is common for this sensor to fail and cause this. The only way to know for sure is to have a shop install a manual oil pressure gauge to check the actual pressure. If the pressure is that high then it is probably an oil pump issue. If not it is the sensor.
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