Question about 2003 GMC Envoy
Sometimes just turning the ke on and off will let it reset. if not the sending unit on the engine ( top rear of engine needs to have thewire unlugged and check to see if it chsnges the dash gauges reading. if not with a test light determine if theres power on the wire that onnects to the oil pressure switch. It should light the test light with the key on and it should light the oil light o the dash, (red oil lamp) with it unconnected the light should go out and the gauge should go lower than too low. If theres an oil lak at the oil pressure switch most of hem are bad if they leak so get and insttall a replacement at the parts store or have your mechanic install it. The gauge will go offt the dial if theirs added power added to the switches sense wire ( battery power). You might find that the wire going to the sending switch is wired into something else ( burnt to the exhaust ) and making a wrong connection. The gauge it'self can be bad as the multi plug that connects it may have a disconnection. This can be tested with a mechanic that has a scanner ( not a code reader) And he can go though the test to determine what failed and is it a wire or a black box problem.
Posted on Nov 06, 2010
Sounds like the wire came off the oil pressure sending unit.
Posted on Nov 06, 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:
Sep 11, 2014 | 2000 Jeep Grand Cherokee
Jun 21, 2013 | Cars & Trucks
Nov 28, 2012 | Cars & Trucks
Aug 22, 2012 | Cars & Trucks
Mar 27, 2017 | 1991 Dodge Dakota
Dec 10, 2011 | 2001 Chevrolet Silverado 1500
Jun 20, 2011 | Ford F-150 Cars & Trucks
Jan 03, 2011 | 2000 Ford Expedition
Nov 14, 2010 | 2003 Chevrolet Silverado 1500
Oct 04, 2009 | 2001 Ford Ranger Regular Cab
Feb 19, 2017 | 2003 GMC Envoy
143 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: