92 GMC 1500

Asked by Jun 10, 2019 at 01:03 AM about the 1992 GMC Sierra 1500

Question type: Maintenance & Repair

My truck won't stay running unless I'm
pressing gas. It won't start. Got new fuel
pump cleaned filter what could it be. I lost
gas cap could that do it

2 Answers

735

Without a gas cap I'm surprised it doesn't have the check engine light on. Get a gas cap on from junk yard or parts store. If you cannot pass emissions, spray a pinch w d 40 under gas cap and put back on. Hope it helps.

55,055

A missing gas cap won't keep the engine from starting or cause your problems. Most likely, this is a dirty idle air control valve or defective cold-start injector sticking at startup, and opening up using the accelerator makes up for this. This also affects how the engine behaves when coming to a stop. This could also involve the throttle position sensor and/or the fuel pressure regulator.

Your Answer:

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    6,690
  • #2
    John Saffrahn
    Reputation
    5,640
  • #3
    yetilikesbeer
    Reputation
    4,800
View All

Find great deals from top-rated dealersTM

Search

Related Models For Sale

Used Ford F-150
133 Great Deals out of 12,922 listings starting at $1,000
Used GMC Yukon
16 Great Deals out of 1,334 listings starting at $4,490
Used Chevrolet Camaro
18 Great Deals out of 1,173 listings starting at $8,900

Used Cars for Sale

2020 GMC Sierra 1500 For Sale
134 listings starting at $76,308
2019 GMC Sierra 1500 For Sale
9 Great Deals out of 9,781 listings starting at $29,980
2018 GMC Sierra 1500 For Sale
6 Great Deals out of 721 listings starting at $27,598
2017 GMC Sierra 1500 For Sale
19 Great Deals out of 575 listings starting at $21,900
2016 GMC Sierra 1500 For Sale
6 Great Deals out of 339 listings starting at $18,995

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.