Question about 2003 GMC Sierra 1500
That is probably a defective oil pressure gauge or a broken oil pressure sender, it reads 80 psi just because that is the maximum value allowed.
Pressure can be verified by reading it with a gauge tool.
If you really have pressure over 70 psi when engine is running then start replacing the oil filter, and check that the oil lines from pump are not obstructed, if there is nothing in there then replace oil pump.
If instead the gauge reads 80 with engine off, that is a defective pressure gauge.
Posted on Feb 25, 2009
The oil sending unit is located on the engine block behind the drivers cylinder head area.You have to climb up on the motor to see it cause it is hard to see behind the wiring harness.You may also want to purchase a new sending unit because it is very long and you might need to buy the sending unit socket to replace it.Hope this helps.Good luck.
Posted on Jul 20, 2010
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
Tips for a great answer:
Nov 08, 2015 | Cars & Trucks
Dec 31, 2013 | 2003 Chevrolet Silverado 1500
Nov 28, 2012 | Cars & Trucks
Nov 27, 2012 | 2006 GMC Envoy
Dec 06, 2010 | 2001 Jeep Grand Cherokee
Jul 20, 2010 | 2003 Chevrolet Silverado 1500
Mar 30, 2010 | 2003 Chevrolet Silverado 1500
Nov 05, 2008 | 2000 Chevrolet Corvette
2,769 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: