1997 GMC Suburban K2500 5.7 vortec Fuel pump will not operate

Asked by Dec 31, 2011 at 08:48 PM about the GMC Suburban

Question type: Maintenance & Repair

Problem started about a month ago vehicle was running then died. i diagnosed problem to fuel via starting fluid. then realized fuel pump was not running, pounded on it with a hammer it still would not start, so i sprayed a little more starting fluid in it and it continued to run until now. I have replaced fuel pump relay, fuel pump, fuel pump wiring harness, all to no avail fuel filter is clean

4 Answers

check the ECM fuse to see if blown.you may have gotten a bad FP.do you here a humming sound when you first turn key switch on,if not one of the above.

2 people found this helpful.

Ecm fuse is good, is there a way to test the ecm to make sure it is good. already thought about the possibility of a bad fuel pump. Is there a way to test the system to check the fuel pump after the tank is back up. Are there any other possibilities that would keep the pump from getting the signal

a computer scan will let you know,if scanned and no scan comes up the computer is bad,it works with the ECM.as asked,do u here a humming when u turn on key switch.if not bad FP or a wire is unhooked.

Found problem wires on after market fuel pump change colors and so pump was wired in reverse sucking fuel versus pumping it thanks all

Your Answer:

Suburban

Looking for a Used Suburban in your area?

CarGurus has 137 nationwide Suburban listings starting at $2,495.

ZIP:

GMC Suburban Experts

  • #1
    LouB
    Reputation
    1,590
  • #2
    ShadetreeMech
    Reputation
    260
  • #2
    Larry Thibert
    Reputation
    260
View All

Related Models For Sale

Used Chevrolet Suburban
317 Great Deals out of 22,548 listings starting at $1,999
Used GMC Yukon XL
201 Great Deals out of 12,623 listings starting at $2,400
Used GMC Yukon
324 Great Deals out of 21,404 listings starting at $2,450
Used Chevrolet Tahoe
525 Great Deals out of 37,767 listings starting at $1,250
Used GMC Sierra 1500
698 Great Deals out of 60,847 listings starting at $1,395
Used Ford Expedition
393 Great Deals out of 22,426 listings starting at $1,000
Used Cadillac Escalade
206 Great Deals out of 11,989 listings starting at $2,990
Used GMC Acadia
454 Great Deals out of 33,138 listings starting at $3,500
Used Ford Explorer
852 Great Deals out of 67,622 listings starting at $999
Used Chevrolet Silverado 1500
1,755 Great Deals out of 153,117 listings starting at $1,000
Used Cadillac Escalade ESV
83 Great Deals out of 7,065 listings starting at $1,795
Used Jeep Grand Cherokee
830 Great Deals out of 75,982 listings starting at $900
Used Lincoln Navigator
73 Great Deals out of 4,155 listings starting at $1,995
Used GMC Terrain
416 Great Deals out of 29,591 listings starting at $4,900
Used Ford F-150
2,230 Great Deals out of 209,288 listings starting at $1,300

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.