Chevy Silverado 2003 2500 Duramax

Asked by Nov 09, 2016 at 08:31 PM about the 2003 Chevrolet Silverado 2500HD 4 Dr LS 4WD Extended Cab LB HD

Question type: General

Ay my chevy Silverado 2003 2500
duramax Suntimes die when I first started
in the morning, a half minute after I started
it?   It won't start again until I hand pump
fuel and then it will start Looking for a
clues, if somebody is having the same
problem what the possible solution

4 Answers


Don't know much about the Duramax diesel but this sounds like an air leak in the fuel supply system. When it finally does start does it blow white smoke for a short period of time and run just a little rough, if so that is a sure sign of air in the fuel. Found this out on an old 671 Jimmy diesel.


I have a similar problem. There is a cluster of metal lines near the fuel tank that has some rust holes in mine. I'm told the repair will cost ~$600, but it isn't my daily ride, so I haven't fixed it yet. Often, I will get out of the driveway and a few hundred yards down the road before it stalls, then I need to manually pump it back up. After that, it tends to be good for the day.

1 people found this helpful.

Your hand pump probably needs to be rebuilt! You can buy a kit with everything You need to do it for about $10.00 bucks!

I had the same issue air is getting in. Didn't have fuel leak either . Brought it to a guy that know's Duramax's and found the fuel lines were bad. He replaced the 2 lines that lead up to the fuel rails. The chevy dealer could not figure that out.

Your Answer

Silverado 2500HD

Looking for a Used Silverado 2500HD in your area?

CarGurus has 29,859 nationwide Silverado 2500HD listings starting at $2,500.


Chevrolet Silverado 2500HD Experts

  • #1
    Steven Loeffler
  • #2
    Tom Demyan
  • #3
    Matthew Wagner
View All

Related Models For Sale

Used GMC Sierra 2500HD
142 Great Deals out of 15,260 listings starting at $3,500
Used Ford F-250 Super Duty
374 Great Deals out of 42,218 listings starting at $1,600
Used Chevrolet Silverado 1500
1,781 Great Deals out of 149,286 listings starting at $1,495
Used Dodge Ram 2500
147 Great Deals out of 4,934 listings starting at $2,495
Used GMC Sierra 1500
722 Great Deals out of 58,462 listings starting at $1,900
Used Ford F-350 Super Duty
431 Great Deals out of 24,311 listings starting at $3,900
Used Ford F-150
2,344 Great Deals out of 215,477 listings starting at $1,300
Used Chevrolet Silverado 2500
3 Great Deals out of 212 listings starting at $4,495
Used Toyota Tundra
478 Great Deals out of 38,526 listings starting at $1,999
Used Chevrolet Silverado 1500HD
6 Great Deals out of 233 listings starting at $2,650

Used Cars For Sale

2018 Chevrolet Silverado 2500HD For Sale
16,745 listings starting at $25,539
2017 Chevrolet Silverado 2500HD For Sale
35 Great Deals out of 1,748 listings starting at $26,869
2016 Chevrolet Silverado 2500HD For Sale
66 Great Deals out of 1,704 listings starting at $25,900
2015 Chevrolet Silverado 2500HD For Sale
64 Great Deals out of 2,280 listings starting at $13,995
2014 Chevrolet Silverado 2500HD For Sale
8 Great Deals out of 616 listings starting at $9,950

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.