1991 GMC Sierra p/u

Asked by Mar 15, 2016 at 10:57 PM about the 1991 GMC Sierra 1500 K1500 4WD Standard Cab SB

Question type: Maintenance & Repair

Can someone please help, my pick up is not
passing spark. We replaced the fuel pump, fuel pp
relay and distrubitor. But the fuel pump is not
coming on. It's not pssai g spark to the injectors.
I'm not sure what else to do.

1 Answer

220

Check see if you have power to fuel pump. When turning key on the relay clicks and sends power to fuel pump for roughly ( seconds to build up the lines with fuel until lying turn it on. If so then your fuel pump is toast. Very common on these models.

Your Answer

GMC Sierra 1500 Experts

  • #1
    dragonflyoffshore
    Reputation
    5,450
  • #2
    John Saffrahn
    Reputation
    3,760
  • #3
    Glenn Clingenpeel
    Reputation
    3,450
View All

Related Models For Sale

Used Ford F-150
2,841 Great Deals out of 212,226 listings starting at $1,300
Used GMC Yukon
594 Great Deals out of 22,091 listings starting at $2,145
Used Chevrolet Camaro
456 Great Deals out of 31,181 listings starting at $3,550

Used Cars For Sale

2018 GMC Sierra 1500 For Sale
22,961 listings starting at $22,858
2017 GMC Sierra 1500 For Sale
95 Great Deals out of 14,998 listings starting at $22,236
2016 GMC Sierra 1500 For Sale
155 Great Deals out of 4,055 listings starting at $16,900
2015 GMC Sierra 1500 For Sale
180 Great Deals out of 5,409 listings starting at $14,990
2014 GMC Sierra 1500 For Sale
207 Great Deals out of 5,006 listings starting at $9,900

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.