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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

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Old Feb 10, 2008 | 06:58 PM
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Cool please help

i have a 1986 ford f-350 with a 460 that wont start i have fuel but no fire new coil,ignition switch and that little box on the fenderwell still no fire but i do have 12 volts going 2 coil please help me thanks
 
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Old Feb 10, 2008 | 07:12 PM
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Take the dist cap off, and make sure the rotor is turning when you crank the engine. If it is, I would suspect the pickup down inside the dist may be bad.
 
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Old Feb 10, 2008 | 07:15 PM
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i tried the pick-up and the rotor is turning
 
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Old Feb 10, 2008 | 07:18 PM
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Put a testlight on the negative of the coil, and put the other end of the testlight on the engine block. Try to crank it. The light should blink when the engine is turning.
 
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Old Feb 10, 2008 | 07:25 PM
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i just did and yes it was blinking
 
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Old Feb 10, 2008 | 07:30 PM
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If the negative of the coil is blinking, and you have a new coil, then you do have spark.
 
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Old Feb 10, 2008 | 07:49 PM
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but iam telling u i dont i stuck my finger in the plug wire and had someone turn it over an nothing
 
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Old Feb 10, 2008 | 07:55 PM
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I was going to say, if the coil negative is blinking, I dare you to take the high voltage wire off the center of the coil and stick your finger down in it and get someone to turn the engine over. If the negative of the coil is blinking, then the dist pickup and the module on the fender are doing their job(turning the coil on and off) and you will get spark out of the top of the coil.
 
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Old Feb 10, 2008 | 07:58 PM
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Originally Posted by jeremysjay2
but iam telling u i dont i stuck my finger in the plug wire and had someone turn it over an nothing

Not a very smart thing to do.....

Take a plug out, ground it against the block with something really insulated and then turn it over to see if you have spark to the plug.
 
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Old Feb 10, 2008 | 08:00 PM
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I know this might seem off the wall...but, is the rotor installed? If it is, is it new?
 
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Old Feb 10, 2008 | 08:00 PM
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still no spark sooooooooooo now what all answers welcomed
 
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Old Feb 10, 2008 | 08:08 PM
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yes the rotor is new and installed the right way
 
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Old Feb 10, 2008 | 08:11 PM
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Take the coil wire off of the dist cap, stick a spark plug directly into the coil wire, hold it against a clean spot on the engine somewhere and then turn it over. If you still have no spark, then your new coil is no good either if you have intermittent (blinking) on the negative side of it like someone else has already mentioned......

If you do have spark, then there is something wrong with your cap and or rotor if it is in fact spinning.....
 
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Old Feb 11, 2008 | 01:46 PM
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Does ot have the cylinoid on the passenger side fender if so try turning your key to the start position and take a screwdriver and cross the cylinoid
 
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Old Feb 11, 2008 | 03:26 PM
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could be bad coil wire
 
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