2003 Duramax will not start engine is hot without prime.
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check and make sure the fuel filter is on there good and the bleeder screw is alright.
Here is a link to fuel system diagnosis.
https://www.dieselbombers.com/chevy-...odes-tsbs.html
Here is a link to fuel system diagnosis.
https://www.dieselbombers.com/chevy-...odes-tsbs.html
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i have almost same problem but my truck loose prime when it is really hot weather (80 F +). or maybe summer blend diesel. i have no problem when its winter. mostly i have to prime it when the diesel tank is on at least 3/4 tank or less....this first happen when stealership changed my fuel filter and i have replaced filter many times now and still happen. the dealer checked everything fuel pressure, codes, etc....and they are functioning normal. please help and thanks in advance...... i am considering putting on airdog fp100 to maintain the pressure on my fuel line....
Last edited by J2cruz; 06-16-2010 at 09:57 AM.
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