how to fix the problem

Asked by Toby Feb 25, 2016 at 09:27 AM about the 2012 GMC Sierra 1500

Question type: Maintenance & Repair

I had a problem for past couple days with oil pressure light
on the 2012 gmc sierra 1500 4.8L then engine light came
on i took it the only code came up was oil pressure switch
so i got a new one change the oil and filter  and still the
same problem low oil pressure with a little ticking sound
everynow an then the light will go off after it warms up itll
go off n the ticking goes away also   it also somtimes even
dies when i crank it  and when the light does go off i can kill
the truck and start it back up and oil pressure light comes
right back on so anyone nows exactly the problem

4 Answers

220,875

Back in like 2005 GM started to put a fine screen type basket in on V8's that I know of, under the oil pressure sending unit. They of course get plugged up and need to be cleaned as it blocks the oil sending unit from reading proper oil pressure. It would be worth taking out the oil pressure sending unit and look to see if it is there, The screen would need to be fished out and cleaned.

Ill give it a try somthing i wouldnt of ever thought about n if thats not it what would be then u think

220,875

If the motor does not knock, more than likely that would be it. Other wise you get the oil pressure checked with a mechanical gauge to verify the oil pressure, and go from there, bearing inspection, then possible oil pump replacement. But oil pumps usually last the life of the motor.

Your Answer:

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 8,304 nationwide Sierra 1500 listings starting at $5,500.

Postal Code:

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,340
  • #2
    dragonflyoffshore
    Reputation
    11,490
  • #3
    John Saffrahn
    Reputation
    11,440
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
212 Great Deals out of 8,092 listings starting at $6,995
Used Ford F-150
318 Great Deals out of 13,660 listings starting at $3,800
Used GMC Sierra 2500HD
37 Great Deals out of 2,192 listings starting at $8,490
Used RAM 1500
456 Great Deals out of 20,260 listings starting at $3,500
Used Toyota Tundra
30 Great Deals out of 978 listings starting at $9,992
Used Chevrolet Silverado 2500HD
24 Great Deals out of 1,701 listings starting at $8,999
Used Toyota Tacoma
46 Great Deals out of 728 listings starting at $8,995
Used GMC Yukon
15 Great Deals out of 966 listings starting at $5,890
Used Chevrolet Tahoe
12 Great Deals out of 847 listings starting at $9,980
Used Ford F-250 Super Duty
25 Great Deals out of 788 listings starting at $3,590
Used GMC Canyon
19 Great Deals out of 903 listings starting at $5,477
Used RAM 2500
68 Great Deals out of 2,531 listings starting at $15,878
Used Dodge Charger
26 Great Deals out of 879 listings starting at $5,495

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. Content will be removed if CarGurus becomes aware that it violates our policies.