Oil pressure gauge

Asked by Dec 31, 2016 at 02:56 PM about the 2008 Chevrolet Silverado 1500 LS Crew Cab

Question type: Maintenance & Repair

I have an 08 Silverado, I continue having trouble
with the oil filter causing the oil pressure gauge to
drop to zero pounds of pressure. At first, I replaced
the oil sending unit and the screen underneath the
unit. It didn't fix it. I checked the oil, obviously, it
was full. I finally changed the oil filter and it was an
automatic fix. However, about every two-three
months, my gauge will start to fall below 40 lbs of
pressure at idle and finally drop to zero and will
make the "stop engine immediately" light to come
on. The truck runs fine, no knocks or rattles and if I
unplug the oil pressure sensor, the truck runs fine, I
just don't have an oil pressure gauge and the check
engine light comes on. And now, the stabiltrak light
has started to flash off and on while driving and the
truck seems to act rough when I get in and out of
the gas. Anyone else having this much fun?

3 Answers

73,735

If this is the 5.3L I have heard of oil pressure problems with this motor, rare but do once in awhile hear of it. The solution has ben to replace the oil pump. On your next issue I suspect the wiring harness at the plugin for the Throttle Positioning Sensor, and the TPS itself. It is also referred to as Throttle Actuator Control Module also. There is a issue with the wires breaking inside the insulation at the plugin, and the TPS wiper arms start to separate. Where I bought my TPS the wiring harness plugin came with it. There should be some sort of code, anywhere from p1515 to p1519 when you scan the vehicle for codes.

73,735

Also on the oil pressure, it would be wise to check with an oil pressure gauge when it shows low oil pressure to verify that this is the problem. It is possible that the sensor or something else is faulty.

18,605

Any system or part failure that can cause a sudden engine die but actually catches itself without it cutting off will cause the gauge to fall and go back to normal even a bad engine misfire or periodical shorts.

Your Answer

Silverado 1500

Looking for a Used Silverado 1500 in your area?

CarGurus has 11,018 nationwide Silverado 1500 listings starting at $1,288.

Postal Code:

Chevrolet Silverado 1500 Experts

  • #1
    John Carson
    Reputation
    2,480
  • #2
    Rowefast
    Reputation
    1,980
  • #3
    Andrew Olsen
    Reputation
    1,700
View All

Related Models For Sale

Used GMC Sierra 1500
254 Great Deals out of 10,805 listings starting at $2,995
Used Ford F-150
458 Great Deals out of 10,025 listings starting at $1,400
Used Chevrolet Silverado 2500HD
7 Great Deals out of 776 listings starting at $3,995
Used Dodge Ram 1500
50 Great Deals out of 537 listings starting at $1,300
Used Toyota Tundra
32 Great Deals out of 886 listings starting at $2,500
Used Toyota Tacoma
37 Great Deals out of 871 listings starting at $5,990
Used Chevrolet Tahoe
3 Great Deals out of 687 listings starting at $4,995
Used Chevrolet Colorado
22 Great Deals out of 1,457 listings starting at $3,995
Used Ford F-250 Super Duty
25 Great Deals out of 884 listings starting at $6,800
Used GMC Sierra 2500HD
29 Great Deals out of 857 listings starting at $3,995
Used Ford Mustang
9 Great Deals out of 1,138 listings starting at $1,250

Used Cars For Sale

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.