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93 f-250 problem

Discussion in 'Ford Trucks' started by Scenic Lawnscape, Sep 21, 2004.

  1. Scenic Lawnscape

    Scenic Lawnscape Senior Member
    Messages: 481

    Ok a few weeks back my starter went, so I replaced the starter and when I did the cable from the starter to the battery hit the manifold and burned off the coating and caught on fire. In the process I blew a fuseable link. I replaced the cable and the fuseable link, thenI noticed that the battery wasnt holding a charge, so I replaced the battery. I went to pull out of the drive I got about 5 feet and lost all power as in go power. I came to a stop and tried to rev up truck no luck, then I heard a big bang and the truck started running, looked underneath and blew a hole in one of the mufflers, well ever since then I can get it to about 20 mph before it starts to bog down starts spitting and supperting, as soon as I let off of the gas and slowly accelerate it seems to be ok. When It is just idleing its fine, it just does this when i am getting on the gas and after 5 or 10 sec of getting on the gas it starts backfiring. I have also replaced the manifolds wires and plugs with in the past week while it was in the garage, Any ideas


  2. Scenic Lawnscape

    Scenic Lawnscape Senior Member
    Messages: 481

    its a 93 f-250 with a 351 auto with 115,000 miles
  3. Mebes

    Mebes Senior Member
    Messages: 451

    Did you check the ground cable?
    I'm guessing that the amperage necessary to cook your positive wire had to get back to the battery somehow.
    I have seen bad grounds can do some crazy things.

    Sputtering and loss of power.
    Is this truck the fuel injected one with the 2 fuel pump setup? (one in the tank, and one on the rail by the fuel filter)
    Sometimes they still run (bad) when 1 of the 2 pumps fail.

    Does the engine rev ok up in neutral but not under load?
    Maybe you have a collapsed catalytic converter causing a restriction in your exhaust system.

    The way you explain the power loss reminds me of when I burnt a hole in the number one piston in my old 2.2 olds.
    Just a little on the throttle and I could get it up to speed.
    Too much and it would sputter and start to lose speed.
    I drove that car home about 90 miles like that after I disconnected the PCV system and added about 9 Quarts of oil.
    The vacuum gage was all over the place when I hooked it up the next day.

    I don't know about the exhaust exploding was it rusty? plugged? kinked
  4. BoulderBronco

    BoulderBronco Senior Member
    Messages: 233

    where is the hole in the exhaust? Is the O2 sensor still there?
  5. Bolts Indus.

    Bolts Indus. PlowSite.com Addict
    Messages: 1,176

    If this started after you changed wires and plugs you have the wires mixed up.
  6. Scenic Lawnscape

    Scenic Lawnscape Senior Member
    Messages: 481

    started before i replaced the wires, and the o2 sensor is still there it was the muffler that blew apart
  7. SteveR

    SteveR Senior Member
    Messages: 252

    I have a 93 f250 and if I understand you right you have electricla issues taken care of, or you may have a relay cooked to a TPS or something. The other issue could be a plugged converter, I had a converter problem and the truck would run but had zero power.
    Not an expert but that may help