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Help 2005 F250 5.4 won't start.

Discussion in 'Truck & Equipment Repair' started by Cooter24, Dec 8, 2013.

  1. Cooter24

    Cooter24 Senior Member
    from NE Iowa
    Messages: 268

    So we just bought this truck and the seller met us half way. Said it cranked longer than normal but always started. Drove home 80 miles. Took forever to start the other morning. Took it to have codes checked. Faulty ignition circuit. Both O2 sensors and improper fuel reading. Whatever cylinder had the misfire had the coil unplugged. Plugged that in and they suggested changing fuel filter then seeing what happens. Now I changed filter and it will not start at all would like to use truck soon, may just take it back to town to have them repair it but we need it. Thanks
     
  2. rjigto4oje

    rjigto4oje PlowSite.com Addict
    Messages: 1,297

    Hows the fuel pressure any spark the code is probably due to the coil being unpluged
     
  3. Cooter24

    Cooter24 Senior Member
    from NE Iowa
    Messages: 268

    Figured the misfire code was due to unplugged coil. Not sure on fuel pressure?
     
  4. rjigto4oje

    rjigto4oje PlowSite.com Addict
    Messages: 1,297

    Try to get a gauge to test the fuel pressure if it takes 3 or more seconds to reach the gauge the pump is junk some auto parts stores loan tools or have you ever heard of Harbor freight tools
     
  5. Super Mech

    Super Mech Member
    Messages: 51

    If you have no way of checking the fuel pressure crawl under the truck while someone turns the key to the on position. Listen for the fuel pump to run for a couple of seconds. If it runs does it sound strong? If not hit the bottom of the gas tank with the side of a hammer in rapid sucession while someone cranks the engine. If it fires up it is more than likely the fuel pump.
     
  6. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,003

    Did you install the filter on the correct way?
     
  7. Cooter24

    Cooter24 Senior Member
    from NE Iowa
    Messages: 268

    Filter is correct. While double checking it it actually came loose on the outlet side and seemed to have pressure.