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f450 running problems help?????????

Discussion in 'Ford Trucks' started by tgumby4, Oct 5, 2006.

  1. tgumby4

    tgumby4 Junior Member
    Messages: 17

    My 2004 f450 has been running with a mis or vapor locking for about 6 months. The problem is random but happens a couple times a day sometimes more. I have had it to the dealer three times and they replaced a speed sensor but still did not fix it. It seems to do it most often with 3/4 of a tank of gas or more. I have the v-10 with a 6 speed. Has anyone else had similiar problems??? I love the truck other than this problem. Thanks in advance for the input.
  2. Bossman 92

    Bossman 92 PlowSite.com Addict
    Messages: 1,771

    I have a 3/4 ton ford and a 1 ton ford both had similar prolbems found out it was a coil pack, I belive. The macanic hooked a tester to it and found out that way. The pack goes onto the spark plug, to elinamate the need for plug wires, great idea :gunsfiring:

    Mabey thats not your prolbem but that is the first thing that came to mind. hope this helps. Andrew
  3. brookview

    brookview Member
    Messages: 33

    we have 5 ford and all have had coil pack problems
  4. Bossman 92

    Bossman 92 PlowSite.com Addict
    Messages: 1,771

    That's just great. So i have replaced 2 out of the 18 packs. I don't know about you guys but I would rather replace the plug wires on a reg. basis than a coil pack at $150 each. There is an eng. somewhere making mucho grande off that design. :gunsfiring:
  5. 4evergreenlawns

    4evergreenlawns Senior Member
    Messages: 552

    HMMMM... no coil pack on a 6.0 PSD ....... but than again $4K upgrade for PSD. All 5 of the PSD are running fine but $150.00 is cheap for any repair on any work truck.
  6. Bossman 92

    Bossman 92 PlowSite.com Addict
    Messages: 1,771

    I agree 150 is not much, but I would rather replace plug wires routinley than mess with those stupid packs, it takes a tester to tell which is bad, great idea.