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No power to fuel pump

Discussion in 'Performance & Fuel' started by Blackhorse06, Dec 7, 2008.

  1. Blackhorse06

    Blackhorse06 New Member

    The truck is a 2002 Chevy Silverado 2500 Duramax Diesel :
    No power goes to the pump when key is turned on, fuse is fine, replaced relay looked fine but replaced it anyways. Traced the wiring and found no problems. Is there any other reason it might not be coming on? Could it be a computer problem? Thanks
  2. 04sierracrewcab

    04sierracrewcab Epic Member 5+ Years 1000 Posts

    did it all of a sudden stop ??? anything unusual before it quit??
  3. Blackhorse06

    Blackhorse06 New Member

    It suddenly stopped. It was low on fuel but not out of fuel. We thought it might have burned up the pump but we checked it over and it is fine. We put in a new one anyways just in case.
  4. dwill3015

    dwill3015 Epic Member 5+ Years ROTM Winner 1000 Posts

    Welcome to the site! That would have been my answer as well (replace fuse and relay) but I'm not sure what is next.
    Anyone else?
  5. 04sierracrewcab

    04sierracrewcab Epic Member 5+ Years 1000 Posts

    hmm, i cant see it being a computer problem, maybe the pump that you got it bad????
    but other than that i dont know what to tell ya
  6. Blackhorse06

    Blackhorse06 New Member

    Oh I just realized I didn't explain it quite right. The main problem is that no power is getting to the pump. We put a test light on the plug going into it and got nothing. So something is stopping power from getting to it.
  7. ct9a

    ct9a Epic Member 5+ Years 1000 Posts

    Try grounding out the system. Take the positive cable of the battery and hold it to the negative post for 15 seconds. This will erase the computer's memory and will either confirm or eliminate the possibility of it being an ECU issue.

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