fuel pump not engaging on 1998 gmc k1500 5.7L

5

Asked by countryboycansurvive... Sep 22, 2014 at 09:29 AM about the 1998 GMC Sierra 1500 K1500 SLE 4WD Extended Cab SB

Question type: Maintenance & Repair

1998 gmc k1500 5.7L. one of the inserts on the connector for the fuel pump is not getting juice to it. according to a wiring diagram it is the gray pump power wire. there are 4 ports in the connector. 2 grounds. pump power. and sender signal. the sender signal has power but nothing to the pump power port. which is why the fuel pump is not engaging i assume. i put a new fuel pump relay in also just for safe measure. any ideas would be greatly appreciated. thank you

2 Answers
165

DRH247 answered 10 years ago

Some of the chevy's have a fuel shut down relay that trips in an accident. One comes up in a parts search but I deal with vans mostly not PU.

16 people found this helpful.
Mark helpful
260

Kelley answered 6 years ago

I wish I knew I put a new fuel pump on wired just like diagram , started right up ran it for 20 miles , noticed the rear brake light were not working put new bulbs in and now it won't start. I have no fire to the fuel pump relay the power wire is gray. So tired all the time something goes wrong on this pickup

26 people found this helpful.
Mark helpful

Your Answer:

Related Questions

Own this car?

Share your experience with others.

1998 GMC Sierra 1500

Write a car review

Review another car

Shortcuts

Search GMC Sierra 1500 Questions

CarGurus Experts

  • #1
    yetilikesbeer
    Reputation
    12,810
  • #2
    dragonflyoffshore
    Reputation
    11,750
  • #3
    John Saffrahn
    Reputation
    11,690
View All

Know more, shop wisely

Search

Related Models For Sale

Used Chevrolet Silverado 1500
4,287 Great Deals out of 122,668 listings starting at $1,999
Used Ford F-150
6,502 Great Deals out of 166,855 listings starting at $1,199
Used Chevrolet Silverado 2500HD
1,018 Great Deals out of 39,620 listings starting at $2,995
Used GMC Yukon
646 Great Deals out of 15,941 listings starting at $2,995
Used Toyota Tacoma
2,217 Great Deals out of 54,702 listings starting at $4,988
Used Dodge RAM 1500
60 Great Deals out of 1,406 listings starting at $850
Used Chevrolet Tahoe
1,284 Great Deals out of 34,928 listings starting at $1,550
Used Ford F-250 Super Duty
1,297 Great Deals out of 51,080 listings starting at $2,900

Used Cars for Sale

2025 GMC Sierra 1500 For Sale
31,277 listings starting at $32,565
2024 GMC Sierra 1500 For Sale
236 Great Deals out of 19,479 listings starting at $25,310
2023 GMC Sierra 1500 For Sale
258 Great Deals out of 3,016 listings starting at $24,998
2022 GMC Sierra 1500 For Sale
156 Great Deals out of 1,833 listings starting at $27,700
2021 GMC Sierra 1500 For Sale
275 Great Deals out of 3,482 listings starting at $20,600

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.