1999 Chevy S-10 new fuel pump have 5 volts at pump but pump will not run

Asked by Guru95VWXH Jan 02, 2021 at 05:00 PM about the 1999 Chevrolet S-10 LS Extended Cab RWD

Question type: Maintenance & Repair

new fuel pump and have 5 volts at pump but fuel pump will not come on and
run what else could be the problem?

1 Answer

27,050

When you first turn on the key, can you hear initial prime? Battery has a full charge and connections all good? What color wire were you checking for voltage, at the pump? The gray wire is voltage and black wire is ground. If you unplug fuel pump relay, use jumper wire between cavities 3 and 5, note the diagram, the pump should run. You don't even need to use the key. Just curious, engine cranking, you have spark at the plugs and fuel injector pulse? Any applicable trouble codes?

Your Answer:

Own this car?

Share your experience with others.

1999 Chevrolet S-10

Review another car

CarGurus Experts

  • #1
    Andrew Olsen
    Reputation
    9,760
  • #2
    Robert Smith
    Reputation
    3,360
  • #3
    Gene Arnett
    Reputation
    2,820
View All

Know more, shop wisely

Search

Related Models For Sale

Used Chevrolet Silverado 1500
4,184 Great Deals out of 119,810 listings starting at $2,500
Used Ford Ranger
638 Great Deals out of 15,718 listings starting at $1,999
Used GMC Sonoma
35 listings starting at $10,900
Used Toyota Tacoma
2,275 Great Deals out of 43,464 listings starting at $4,888
Used Ford F-150
6,251 Great Deals out of 145,060 listings starting at $1,100
Used GMC Sierra 1500
1,918 Great Deals out of 65,726 listings starting at $1,200
Used Dodge Dakota
18 Great Deals out of 469 listings starting at $1,000
Used Chevrolet Silverado 2500HD
1,038 Great Deals out of 30,100 listings starting at $2,900
Used Chevrolet Blazer
638 Great Deals out of 13,609 listings starting at $5,249
Used Dodge RAM 1500
74 Great Deals out of 1,491 listings starting at $1,999
Used Nissan Frontier
831 Great Deals out of 21,817 listings starting at $3,400
Used Chevrolet Corvette
749 Great Deals out of 12,383 listings starting at $1,995
Used Chevrolet Camaro
666 Great Deals out of 8,630 listings starting at $3,200

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.