i have a 1997 gmc sierra truck runs good for 3-4 days then dies.. fuel pump is not coming on ive changed fuel pump relay. wait 30 mins later then it cranks. then a week or so later it does it again..i cant figure out whats wrong with it.. any help would be greatly appreciated..

Asked by Jun 20, 2015 at 10:32 PM about the 1997 GMC Sierra 1500 C1500 SL Extended Cab LB

Question type: Maintenance & Repair

6 Answers

86,495

Check the amperage draw for the fuel pump, if it's pulling too may amps it is most likely overheating the pump relay and burns out the points.

1 out of 1 people think this is helpful.
61,135

TS, is right ,but if not relay ,may be the pump,they act like this when bad, run good for a while the go out,then work again,

1 out of 1 people think this is helpful.
Best Answer
155

Mine did the exact same thing. It was the pump. It was not a GM pump and i've heard from a few sources you have to use a GM pump as the other ones all fail.

1 out of 1 people think this is helpful.

Thanks Everyone but we still haven't figured it out yet. I have checked the fuel pump and its not that,so i have checked so many things including the module iginition but for some reason when my truck dies after driving it around for about 30 mins the fuel pump is not on at all so im lost. Any help would be wonderful. it ill is dying on me so i no its something in the front end but not sure where and why.. HELP

61,135

The only other thing you may need to check is the ECM,when they go bad they run good,then not.

1 out of 1 people think this is helpful.
61,135

All so check the wires under the relay that hooks into fuse box,may be loose,

1 out of 1 people think this is helpful.

Your Answer

Add photo

Related Questions

Sierra 1500

Looking for a Used Sierra 1500 in your area?

CarGurus has 62,271 nationwide Sierra 1500 listings starting at $1,395.

ZIP:

Search GMC Sierra 1500 Questions

GMC Sierra 1500 Experts

#1 dragonflyoffshore
dragonflyoffshore
Reputation 4,740
#2 John Saffrahn
John Saffrahn
Reputation 3,350
#3 Glenn Clingenpeel
Glenn Clingenpeel
Reputation 2,960
View All

Related Models For Sale

Used Ford F-150
2,884 Great Deals out of 212,656 listings starting at $1,000
Used Dodge Ram 1500
535 Great Deals out of 12,998 listings starting at $2,199
Used Toyota Tacoma
627 Great Deals out of 35,082 listings starting at $2,155
Used GMC Yukon
551 Great Deals out of 17,369 listings starting at $1,995
Used Chevrolet Tahoe
809 Great Deals out of 28,674 listings starting at $1,500
Used Chevrolet Camaro
309 Great Deals out of 38,867 listings starting at $1,250

Used Cars For Sale

2017 GMC Sierra 1500 For Sale
24 Great Deals out of 35,472 listings starting at $23,745
2016 GMC Sierra 1500 For Sale
55 Great Deals out of 4,030 listings starting at $19,980
2015 GMC Sierra 1500 For Sale
125 Great Deals out of 4,111 listings starting at $14,988
2014 GMC Sierra 1500 For Sale
150 Great Deals out of 4,405 listings starting at $14,495
2013 GMC Sierra 1500 For Sale
91 Great Deals out of 2,391 listings starting at $9,000