08 GMC 3500HD Low oil pressure alarm.

385

Asked by BigTexApps Aug 10, 2015 at 03:17 PM about the 2008 GMC Sierra 3500HD SLT Crew Cab DRW 4WD

Question type: Maintenance & Repair

Ok let me throw a twist on this. Oil pressure gauge never moves off 35 - 40psi but the
alarm comes on saying low oil pressure shut engine down now..... Turn the blinker on
and the alarm goes away until next time. This happen when stopping or in heavy traffic.
Hardly ever drive highways speeds down the road.

5 Answers

385

Yes, changed oil and filter the first time it happened right away. And checked the next couple of times it has happened. Seems to happen more often now than before.

1 people found this helpful.
65,450

Get a oil pressure test done to make sure but just might be a bad oil pressure switch.

1 people found this helpful.
385

Why would the blinker switch cancel the alarm? Any ideas? The oil pressure gauge never moves when the alarm comes on. The only time it drops is when engine is off and it drop about 5 psi when at low rpm

1 people found this helpful.

Your Answer:

Sierra 3500HD

Looking for a Used Sierra 3500HD in your area?

CarGurus has 1,427 nationwide Sierra 3500HD listings starting at $11,950.

Postal Code:

CarGurus Experts

  • #1
    frankd3
    Reputation
    60
  • #2
    oilyspill
    Reputation
    50
  • #3
    Gene Arnett
    Reputation
    40
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used GMC Sierra 2500HD
19 Great Deals out of 1,645 listings starting at $12,900
Used Chevrolet Silverado 3500HD
13 Great Deals out of 869 listings starting at $6,495
Used Ford F-350 Super Duty
36 Great Deals out of 2,593 listings starting at $8,888
Used Chevrolet Silverado 2500HD
25 Great Deals out of 1,239 listings starting at $9,990
Used GMC Sierra 1500
150 Great Deals out of 7,037 listings starting at $3,950
Used Ford F-250 Super Duty
26 Great Deals out of 1,179 listings starting at $8,995
Used Ford F-450 Super Duty
3 Great Deals out of 144 listings starting at $27,995
Used Dodge RAM 3500
30 listings starting at $13,888
Used Chevrolet Silverado 1500
217 Great Deals out of 5,899 listings starting at $2,975
Used GMC Sierra 3500HD Chassis
28 listings starting at $59,279
Used Ford F-150
323 Great Deals out of 15,226 listings starting at $3,295

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.