71 250 with mini starter?

Discussion in 'Technical' started by chevyandford71, Aug 25, 2012.

  1. chevyandford71

    chevyandford71 Member

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    It feels like five seconds being that it is a very short amount of time the car will actually stay running (Under a minute, havent timed exact). I changed the fuel pump because my father and i initially thought that was the culprit. I would imagine that it is not loosing spark because i changed all the plugs before i let it sit (last ran in january), but it could still be loosing the spark.
     
  2. Bryant

    Bryant forgot more than learned

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    it could loose spark due to the ignition module or the coil or the wiring or even the ignition switch over heating.
    5 seconds and 1 min are a huge difference in time. accuracy in presenting the problem is important to get accurate response.
    just replacing parts because you feel that may be the problem is called shot gun repair. you just shoot and hope that you hit the target. you can spend lots of money.
    testing things is free.
    do the fuel flow test. if you flow is too low you will get the motor to run for around 30 sec or even up to 2 min.
    the electrical components in the ignition system will behave the same way as they get hotter when they are bad they will heat up then stop working. sometimes even result the spark just getting weaker.
    the motor will run rougher then stall out in almost the same manor with both types of failure. this is why testing is important.
     
  3. John Holden

    John Holden Member

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    My first thought is that one of the small wires on the selenoid was disconnected and when it stopped cranking he lost spark.
     
  4. chevyandford71

    chevyandford71 Member

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    @ John, i did have to "Ghetto rig" the solenoid to the starter because i put one on from a 95 ranger in order to make the header downpipes fit. Could a cracked battery clamp be the culprit?
     

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