low oil pressure on 2011 silverado
Asked by JGR1018 Nov 14, 2019 at 01:06 PM about the 2011 Chevrolet Silverado 1500 LT Crew Cab RWD
Question type: Maintenance & Repair
i have a 2011 silverado 5.3 with about 150k
miles. it idles pretty rough and oil pressure at
idle is just over 20 psi. oil level is fine and
doesn’t leak or anything
2 Answers
Im having the same issue. Try replacing the oil pressure sending unit/switch and filter beneath it. I've put 2 new ones in and still have the same problem but it might help you. What rpm is it idling at?
Try changing the oil and filter. Use 5 quarts 5w 30 and 1 quart Lucas for high mileage oil additive. Seems to have been what mine needed and had same problem