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 out of 2 people think this is 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

Add photo

Related Questions

  • 1995 5.7 GMC SUBURBAN K1500 Won't start. 2 answers

    95 Suburban sputters/loses power, backfires Loud, now won't start. I have a 1995 gmc suburban 5.7 350 v8 k1500, bought it in 2001 and ran perfectly fine with regular tune ups and maintenance , never...

    1995 GMC Suburban K1500 4WD

    -

    Maintenance & Repair

  • 95 GMC suburban 5.7 won't start no spark, sputtered backfire ran fine died 4 answers

    95 Suburban sputters/loses power, backfires Loud, now won't start. I have a 1995 gmc suburban 5.7 350 v8 k1500, bought it in 2001 and ran perfectly fine with regular tune ups and maintenance , ne...

    1995 GMC Suburban K1500 4WD

    -

    Maintenance & Repair

  • I need help with a 1993 gmc 5.7L tbi. 24 answers

    Ok, so i have a 93 gmc suburban. I just put a new engine in. It has flat top pistons running about 9.2 to 1 compression and an rv cam. The truck itself has about 282000 miles on it. I am having an...

    1993 GMC Suburban K1500 4WD

    -

    Maintenance & Repair

  • Fuel injectors not spraying. How do I check them? 4 answers

    Was running just fine. Stop shut it off went in store and when I came out it started then died when put in to gear. Now I have fuel going to injectors, but not spraying. I have TBI on 5.7l motor.

    1993 GMC Suburban K1500 4WD

    -

    Maintenance & Repair

  • radical fuel mpg loss 1994 chevy suburban 7 answers

    last summer vehicle was in high heat 1oo plus degrees outside temps. battery went dead tried to jump start burned up a set of jumper cables in jump start process the cables were connected properly fro...

    1994 Chevrolet Suburban K2500 4WD

    -

    Maintenance & Repair

Suburban

Looking for a Used Suburban in your area?

CarGurus has 131 nationwide Suburban listings starting at $3,500.

ZIP:

Search GMC Suburban Questions

GMC Suburban Experts

#1 LouB
LouB
Reputation 1,310
#2 ShadetreeMech
ShadetreeMech
Reputation 190
#2 Larry Thibert
Larry Thibert
Reputation 190
View All

Related Models For Sale

Used Chevrolet Suburban
349 Great Deals out of 19,118 listings starting at $1,350
Used GMC Yukon XL
261 Great Deals out of 12,157 listings starting at $1,999
Used GMC Yukon
346 Great Deals out of 17,289 listings starting at $2,500
Used Chevrolet Tahoe
577 Great Deals out of 27,581 listings starting at $1,500
Used GMC Sierra 1500
796 Great Deals out of 67,165 listings starting at $2,700
Used Ford Expedition
394 Great Deals out of 25,341 listings starting at $1,750
Used Cadillac Escalade
227 Great Deals out of 11,031 listings starting at $3,000
Used Chevrolet Silverado 1500
1,750 Great Deals out of 170,133 listings starting at $1,800
Used GMC Acadia
506 Great Deals out of 47,093 listings starting at $4,995
Used Cadillac Escalade ESV
115 Great Deals out of 5,807 listings starting at $3,500
Used Ford F-150
2,253 Great Deals out of 209,704 listings starting at $1,499
Used Toyota 4Runner
279 Great Deals out of 20,895 listings starting at $1,995
Used Dodge Durango
266 Great Deals out of 23,164 listings starting at $1,500
Used GMC Terrain
568 Great Deals out of 31,722 listings starting at $5,850
Used Chevrolet Silverado 2500HD
304 Great Deals out of 26,958 listings starting at $1,250