1997 GMC Suburban K2500 5.7 vortec Fuel pump will not operate

Asked by Milkmn101 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

papa answered 12 years ago

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.
Mark helpful

Milkmn101 answered 12 years ago

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

Mark helpful

papa answered 12 years ago

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.

Mark helpful

Milkmn101 answered 12 years ago

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

Mark helpful

Your Answer:

Related Questions

Suburban

Looking for a Used Suburban in your area?

CarGurus has 3 nationwide Suburban listings and the tools to find you a great deal.

Postal Code:

Shortcuts

Search GMC Suburban Questions

CarGurus Experts

  • #1
    ShadetreeMech
    Reputation
    1,090
  • #2
    Larry Thibert
    Reputation
    970
  • #3
    DanTheMan5160
    Reputation
    660
View All

Find great deals from top-rated dealers

Search

Related Models For Sale

Used Chevrolet Suburban
7 Great Deals out of 529 listings starting at $4,999
Used GMC Yukon
10 Great Deals out of 930 listings starting at $6,900
Used GMC Yukon XL
11 Great Deals out of 705 listings starting at $9,999
Used Chevrolet Tahoe
18 Great Deals out of 779 listings starting at $7,499
Used Ford Expedition
17 Great Deals out of 637 listings starting at $3,966
Used GMC Sierra 1500
143 Great Deals out of 7,815 listings starting at $5,500
Used Cadillac Escalade
16 Great Deals out of 453 listings starting at $5,000
Used Cadillac Escalade ESV
4 Great Deals out of 164 listings starting at $8,950
Used Chevrolet Silverado 2500HD
21 Great Deals out of 1,571 listings starting at $5,990
Used Ford Excursion
1 listing

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.