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Starting question

Discussion in 'Intermediate CJ-5/6/7/8' started by High5, Jul 26, 2005.

  1. Jul 26, 2005
    High5

    High5 Member

    Urbandale, IA
    Joined:
    Jan 13, 2005
    Messages:
    802
    What would cause my Jeep to only start once I let off of the key. I mean, I crank the engine over and until I let off the key it won't start. Once I do, fires right up.
    Wires crossed??????

    It's not a problem, really, it just seems weird.

    High5 :beer:
     
    High5, Jul 26, 2005
    #1
  2. Jul 26, 2005
    hudsonhawk

    hudsonhawk Well-Known Member

    North Texas...
    Joined:
    Feb 4, 2005
    Messages:
    1,943
    check the power wire for the coil.. It may be wired into the accessories side of the key switch. It needs to be on ignition side.
     
    hudsonhawk, Jul 26, 2005
    #2
  3. Jul 26, 2005
    Brian(CJ5)

    Brian(CJ5) New Member

    Joined:
    Feb 15, 2005
    Messages:
    24
    I would check to make sure your ignition and coil are wired correctly. When the engine is running normally, the current the to coil passes through a resistor (or resistance wiring). When you start the engine for the first time, however, this resistance is bypassed in order to generate a high enough voltage for the coil. If this was wired backwards, you would bypass the resistance when you let go of the key, which would explain why it starts. This also means that you are constantly bypassing the resistance in normal operation.
     
    Brian(CJ5), Jul 26, 2005
    #3
  4. Jul 26, 2005
    Chuck

    Chuck Sponsor

    Southshore Ma
    Joined:
    Sep 19, 2004
    Messages:
    1,463
    Have you checked your timing?
     
    Chuck, Jul 26, 2005
    #4
  5. Jul 27, 2005
    High5

    High5 Member

    Urbandale, IA
    Joined:
    Jan 13, 2005
    Messages:
    802
    Yeah, I have check the timing over and over again. IIRC this just started happening. Maybe it is the timing. I will check it again tonight.

    Thanks for the help

    High5
     
    High5, Jul 27, 2005
    #5
  6. Jul 27, 2005
    gonzojohn

    gonzojohn Banned

    Joined:
    Jul 18, 2005
    Messages:
    164
    Ford electronic ignitions are notorious for this problem when the battery gets weak & there is not enough juice to power the ignition module until the starter is disengaged.
    Check your wiring first, then do a load test on your battery & coil.

    gj
     
    gonzojohn, Jul 27, 2005
    #6
  7. Jul 27, 2005
    High5

    High5 Member

    Urbandale, IA
    Joined:
    Jan 13, 2005
    Messages:
    802
    I have a new Optima Red top and a Chevy HEI coil. I don't think it's the battery. I could have wired something incorrectly or the timing could be off a bit. It runs and drives good, just starts funny. This happened a few years ago too, before the HEI and new battery. Maybe the timing is off.

    Thanks
    High5
     
    High5, Jul 27, 2005
    #7
  8. Jul 27, 2005
    iamgeer

    iamgeer Member

    Calgary,...
    Joined:
    Jan 30, 2004
    Messages:
    226
    Sounds to me like you forgot to hook up the wire going from the starter solenoid to the coil and that because everything is spinning and you let off the start position the coil gets some voltage from the run position and the engine starts. You know the wire I mean, the one that gives the coil the 12v shot to get the engine started.

    Not so cumminicating good today. Sorry for confusion.

    Karl
     
    iamgeer, Jul 27, 2005
    #8
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