1999 gmc 4.8 mass air flow

Asked by David Jan 04, 2015 at 06:54 PM about the 1999 GMC Sierra 1500 SLE Extended Cab LB

Question type: Maintenance & Repair

I believe my mass air flow is going? when I start the truck it is searching for idle and will stall.
is this a sign of the maf going?

1 Answer
201,085

dandyoun answered 9 years ago

Maf sensor should cause your check engine light to come on. But if no check engine light I would consider dirty/faulty idle air control valve or dirty throttle plate. The iac will not always thro a check engine light code.

1 people found this helpful.
Mark helpful

Your Answer:

Related Questions

  • 1999 gmc 4.8 mass air flow 1 Answer

    I believe my mass air flow is going? when I start the truck it is searching for idle and will stall. is this a sign of the maf going?

    1999 GMC Sierra 1500 SLE Extended Cab LB

    -

    Maintenance & Repair

  • Mass air flow sensor 1 Answer

    I drive a 2003 GMC Sierra 4.8l v8. When my mass air flow sensor is plugged in, my rpms jump up and down and I have virtually no power. When it’s unplugged, it runs fine, but no gas mileage and it ...

    2003 GMC Sierra 1500 Work Truck Extended Cab SB

    -

    Maintenance & Repair

  • truck wont run after replacing fuel pump, oil pressure switch and mass air flow sensor 1 Answer

    1998 GMC Silverado vortec V8 5.7L

    1998 GMC Sierra 1500

    -

    Maintenance & Repair

  • 1999 GMC SIERRA 1500 4 Answers

    I recently switched motors in my truck, I pulled the motor from my 1999 gmc sierra 1500 and dropped it into a 1998 gmc sierra 1500. The motor turns over but it wont ilde, what would cause this to happ...

    1999 GMC Sierra 1500 SLE 4WD Extended Cab LB

    -

    Maintenance & Repair

  • Last 4.8 swap to a 5.3 2 Answers

    What to I need to swap my current blown 2013 gmc truck 4.8 LS to a 2016 5.3 LT engine

    2013 GMC Sierra 1500 Work Truck 4WD

    -

    Maintenance & Repair

Shortcuts

Search GMC Sierra 1500 Questions

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,850
  • #2
    dragonflyoffshore
    Reputation
    11,810
  • #3
    John Saffrahn
    Reputation
    11,720
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Silverado 1500
231 Great Deals out of 5,909 listings starting at $2,975
Used Ford F-150
321 Great Deals out of 13,751 listings starting at $1,712
Used Toyota Tundra
36 Great Deals out of 1,350 listings starting at $6,255
Used Chevrolet Silverado 2500HD
27 Great Deals out of 1,242 listings starting at $9,500
Used GMC Yukon
14 Great Deals out of 898 listings starting at $4,555
Used Toyota Tacoma
50 Great Deals out of 1,081 listings starting at $9,998
Used Dodge RAM 1500
4 Great Deals out of 63 listings starting at $3,000
Used Chevrolet Tahoe
14 Great Deals out of 904 listings starting at $12,900
Used Ford F-250 Super Duty
17 Great Deals out of 1,169 listings starting at $8,995

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.