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2003 silverado duramax shut off on me replaced the filter and reprimed still wont start the pump makes a little noise when i turn the key but only lasts about a 1/ 2 a second need help checked the fuel pump relay its ok also

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JOHN LAPIER

Chevrolet Master 2,602 Answers
Posted on Mar 16, 2015

JOHN LAPIER

Chevrolet Master

Joined: Oct 01, 2010

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Its hard to say for sure .It could be the pump there olny good for 10 years or so depending on how much you drive it
It could also be a wireing or connection problem to the pump they have upgraded the wireing .
But it could also be the oil pressure sending unit .Chevy uses it as a back up for the relay in case the relay gose bad while driveing the oil pressure unit will energize the fuel pump to keep it running .
Dose it or did it crank for a long time before it starting before it wouldn't start anymore

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2003 duramax, when clod it will start drive for 30min to hour and shut it off will not start untill it cooled off for about 2-3 hours

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2003 silverado duramax shut off on me replaced the filter and reprimed still wont start the pump makes a little noise when i turn the key but only lasts about a 1/ 2 a second need help checked the fuel pump relay its ok also

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JOHN LAPIER

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2003 duramax, when clod it will start drive for 30min to hour and shut it off will not start untill it cooled off for about 2-3 hours

2005 Duramax stopped running.replaced fuel filter and sensor,no luck cam you help.

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2003 duramax, when clod it will start drive for 30min to hour and shut it off will not start untill it cooled off for about 2-3 hours

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Trustworthy Expert Solutions

2003 silverado duramax shut off on me replaced the filter and reprimed still wont start the pump makes a little noise when i turn the key but only lasts about a 1/ 2 a second need help checked the fuel pump relay its ok also

1 Answer

JOHN LAPIER

Add Your Answer

Attachments: Added items

Related Questions:

2003 duramax, when clod it will start drive for 30min to hour and shut it off will not start untill it cooled off for about 2-3 hours

2005 Duramax stopped running.replaced fuel filter and sensor,no luck cam you help.

2002 chevy 6.6 duramax wont start even in warm weather or after motor is warm..... only starts with starting fluid. codes are p0335/p0193/poo87/p0090

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2003 duramax, when clod it will start drive for 30min to hour and shut it off will not start untill it cooled off for about 2-3 hours

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