Stalling out

Asked by Apr 02, 2017 at 11:46 AM about the 2002 GMC Sierra 3500

Question type: Maintenance & Repair

My gmc 3500 will start up in the morning just fine. As I start
to drive after a few miles it loses all fuel and dies. Then I try
to start it and it just cranks and cranks and finally will start  
but it is very hard to keep it running while driving. I've
cleaned the throttle body and replaced the front gas tank
fuel pump. Also put on new plugs an d wires

1 Answer


You should do a fuel pressure bleed down test. Hook up a fuel pressure gauge to the Schrader Valve, build up fuel pressure on the gauge, should be 56 to 63 lbs, then turn the key off. Watch the fuel pressure gauge to see if it drops in pressure, It should not drop down more than 5 lbs. in three minutes. If it does then there is a problem with leaky fuel injectors. Check the fuel pressure regulator, pull the vacuum line off to make sure it is not leaking.

Your Answer

GMC Sierra 3500 Experts

  • #1
    Tom Demyan
  • #2
    Jaime Moreno
  • #2
View All

Related Models For Sale

Used GMC Sierra 2500HD
22 Great Deals out of 1,624 listings starting at $3,600
Used Ford F-350 Super Duty
28 Great Deals out of 1,384 listings starting at $8,777
Used Chevrolet Silverado 2500HD
16 Great Deals out of 1,465 listings starting at $3,300
Used GMC Sierra 1500
176 Great Deals out of 12,112 listings starting at $1,775
Used Dodge Ram 3500
4 Great Deals out of 72 listings starting at $9,990
Used Ford F-250 Super Duty
20 Great Deals out of 769 listings starting at $3,500
Used Chevrolet Silverado 1500
162 Great Deals out of 12,230 listings starting at $1,895
Used Ford F-450 Super Duty
67 listings starting at $22,997
Used Dodge Ram 2500
5 Great Deals out of 87 listings starting at $8,999

Used Cars For Sale

2004 GMC Sierra 3500 For Sale
1 listings starting at $16,888

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.