Question about GMC Sierra 1500
Oil pressure drops to 0 at idle when warm
If you don't have an oil pressure test kit to measure actual engine oil pressure, try replacing the oil pressure sender 1st and recheck. Its the cheapest and easiest to do .
Posted on Dec 29, 2013
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
SOURCE: OIL PRESSURE RELIEF VALVE
If cleaning the engine does not work, replace the oil press. sending unit. These senders on Jeeps have had a history of problems where they will work one day and not the next day.
Posted on Jan 27, 2009
The fuel pump on that model runs through the oil pressure switch so that if the truck looses oil pressure,It kills power to the fuel pump to prevent engine damage.you need to find the cause of the low oil pressure reading(possibly a bad oil switch).That would be the cheapest place to start,or have it checked with a mechanical gauge.Good luck,
Posted on Mar 30, 2009
This could be a number of things but i think that your problem sounds like a vacuum leak or an EGR problem. Try listening for leaks and try un-plugging the EGR solenoid valve one time.
Posted on Apr 17, 2009
SOURCE: oil pressure drops to 0 at idle
OOO not good sounds like some of the head gasket got stuck somewhere, or the gauge or sender is bad or got knocked around when repairing the head gasket. I would check that first. If that checks out will need to drop the pan to see if something got stuck in the pickup tube,might as well change the pump while you are there. Or worst case some thing wrong with gasket job impeading oil flow back to bottom of the engine. Was the oil and filter changed ?if so pull out filter and see if an chunks are stuck in it now. And change oil and filter again. Sorry that was out of order I had a long day
Posted on Apr 24, 2009
When the gauge is at 0, is there any noise from the engine (tick, knock etc?) I would have someone put a mechanical gauge on there and read true pressure.Your driving pressure seems OK but if the low number is "real" something is wrong!
Posted on May 30, 2009
Tips for a great answer:
Dec 02, 2017 | Holden Cars & Trucks
Apr 03, 2014 | 1994 Ford Bronco
May 14, 2012 | 2004 Chevrolet TrailBlazer
Aug 29, 2017 | 1998 Dodge Ram 1500 4WD
Oct 31, 2010 | Dodge Intrepid Cars & Trucks
Jan 03, 2010 | 2002 GMC Sierra C/K1500
Aug 06, 2009 | 2003 Jeep Grand Cherokee
Jul 18, 2009 | 2002 Isuzu Rodeo
Jul 18, 2008 | 1994 Ford F150 Styleside Supercab
May 16, 2018 | 1984 GMC S-15 Jimmy
113 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: