Why wont my fuel pump come on?

20

Asked by Mar 03, 2015 at 11:03 PM about the 1998 Chevrolet Suburban K1500 4WD

Question type: Maintenance & Repair

We tested the with a voltage meter. We get 12 volts at the plug for the pump for 2
seconds when turning on to the on position & 12 volts continuously when cranking over
but when we plug in the fuel pump it does nothing. We ran jumper wires from the pump to
a battery directly & it fires up. Totally baffled here.

2 Answers

102,415

Check the pumps connector at the tank, the connectors are known failures, usually when you buy a replacement plum it is included in the box. I had a Tahoe that I had long enough for it to burn through 2 fuel pumps, on the 2nd pump I had to replace the plug, you couldn't see a problem without shining a light through it then you could see the black corrosion inside it. HTH

20

Changed the plug (again) when I have the pump unplugged & check I got voltage (to either side of the splice & at the plug. However when I plug it in I have no voltage at the splice (either side). Changed the low oil/fuel pump switch, also replaced the fuel pump relay. The first pump we replaced was 9 months ago, so it was under warranty took it in replaced it with another new pump (thinking it was the pump, then took it out went & got yet another pump still same issues.)

2 of 2 people found this helpful.

Your Answer

Chevrolet Suburban Experts

  • #1
    Andrew Olsen
    Reputation
    1,040
  • #2
    Neal Turner
    Reputation
    930
  • #3
    Eric Fritz
    Reputation
    920
View All

Related Models For Sale

Used Chevrolet Tahoe
705 Great Deals out of 41,326 listings starting at $1,995
Used GMC Yukon
447 Great Deals out of 22,132 listings starting at $1,995
Used Ford Expedition
347 Great Deals out of 17,752 listings starting at $1,989
Used Cadillac Escalade
243 Great Deals out of 12,091 listings starting at $2,500
Used Chevrolet Silverado 1500
2,220 Great Deals out of 168,148 listings starting at $1,000
Used Ford F-150
2,504 Great Deals out of 195,940 listings starting at $1,500
Used Lincoln Navigator
80 Great Deals out of 4,093 listings starting at $1,900
Used GMC Suburban
152 listings starting at $3,995
Used Dodge Durango
258 Great Deals out of 22,767 listings starting at $895

Used Cars For Sale

2017 Chevrolet Suburban For Sale
71 Great Deals out of 9,956 listings starting at $41,499
2016 Chevrolet Suburban For Sale
38 Great Deals out of 1,462 listings starting at $32,988
2015 Chevrolet Suburban For Sale
27 Great Deals out of 1,495 listings starting at $22,997
2014 Chevrolet Suburban For Sale
16 Great Deals out of 547 listings starting at $16,998
2013 Chevrolet Suburban For Sale
17 Great Deals out of 594 listings starting at $10,495

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.