Question about 2003 Chevrolet Silverado 2500HD

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2004 chev 2500 duramax diesel no start and no fuel pressure

Will start with either but only run till either is gone - no codes

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  • saturck Jun 17, 2009

    only has one fuel pump on motor.

  • Jesse East May 11, 2010

    Don't they say do not use ether on a glow-plug engine or serious damage may occur?

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Primay fuel pump is defective and won't allow the secondary pump to build pressure and causes it to die and has lack of power, most likely it started getting gutless before it happened.

Posted on Jun 17, 2009

  • Bruce Hathcock Jun 17, 2009

    It has two a secondary on the side of the block and the main high pressure pump that feeds the injector relpalace the one on the side of the block and it should run, remove fuel filter too. Take my word for it it has two pumps.

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1 Answer

Ran out of diesel now vehicle won't start


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My 03 duramax started fine this morning but only ran for a fiew minnuts then shut off on its own and now it wii turn over but not start it seems to have fuel pressure can it be cam sensor or crank sensor...


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The best way to find out is to scan the engine computer for fault codes and read the engine data from the computer to see if all of the sensors are providing the correct input to the computer.

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1 Answer

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try hooking up a fuel pressure test gauge to fuel rail pre filter and post filter and rev truck to 2500 rpm what is fuel pressure ?
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