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

90,835

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
    Jaime Moreno
    Reputation
    40
  • #2
    ytlas
    Reputation
    30
  • #3
    ryanj
    Reputation
    20
View All

Related Models For Sale

Used GMC Sierra 2500HD
11 Great Deals out of 1,639 listings starting at $3,956
Used Chevrolet Silverado 2500HD
15 Great Deals out of 1,359 listings starting at $6,895
Used Dodge Ram 3500
49 listings starting at $11,995
Used Ford F-350 Super Duty
15 Great Deals out of 1,208 listings starting at $5,900
Used Ford F-250 Super Duty
12 Great Deals out of 851 listings starting at $1,500
Used GMC Sierra 1500
62 Great Deals out of 8,667 listings starting at $4,499
Used Dodge Ram 2500
73 listings starting at $3,500
Used Ford F-450 Super Duty
67 listings starting at $12,999

Used Cars for Sale

2006 GMC Sierra 3500 For Sale
2 listings starting at $15,900
2004 GMC Sierra 3500 For Sale
3 listings starting at $14,995

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.