05 chevy 5.3 low oil pressure when cold

Asked by Feb 02, 2014 at 12:59 AM about the 2005 Chevrolet Silverado 1500 LS Crew Cab 4WD

Question type: Maintenance & Repair

When truck is first started oil pressure is at 40 psi. As the motor idles down the oil
pressure drops off low oil pressure message comes on . if you keep the rpms up to 800 to
1000 it never losses pressure. Once the truck is warn the issue goes away. I already
changed the oil pressure sensor. Thanks

1 Answer

8,105

might be some sludge in the sump

3 of 3 people found this helpful.

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