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

3 Answers

101,875

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.

15

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 of 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!

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