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1967 - 1972 F-100 & Larger F-Series Trucks Discuss the Bumpsides Ford Truck

Ignition switch symptoms

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Old Jul 23, 2005 | 10:12 PM
  #1  
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Ignition switch symptoms

I'm trying to figure out if I have the wrong ignition switch in my truck- it's a 70 F100, supposed to be after the ignition switch change, but I'm not sure now. I dropped in a switch from my 72, but as soon as I turn the ignition to on, the truck starts cranking and won't stop until I turn the ignition off. I don't have an earlier switch to try in it, and I don't want to spend the money for one if I don't have to. Does this sound like the symptoms of the wrong switch, or do you guys think something in my wiring is messed up?
 
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Old Jul 24, 2005 | 07:21 AM
  #2  
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Jared, I would suspect incorrect wiring, or a problem elsewhere. Most of those switches are simple and interchangable, as they only have acc, off, on, & start.

I know this aint much but hope it reinforces your thoughts.

John
 
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Old Jul 24, 2005 | 09:22 AM
  #3  
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DarkWolf40
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Youv'e got the wires crossed on the solinoid. The two small wires that are on the front of the solinoid are probably reversed.
 
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