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post #1 of (permalink) Old 04-11-2007, 03:45 AM
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Fires But Won't Run please help me

Ive got a 1974 ford with a 390 FE ford motor.It fires on a few cylinders but wont run. This is urgent mud bogging season is just starting up here and i have no truck!!
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post #2 of (permalink) Old 04-19-2007, 09:22 PM
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I think the first thing to do is check for spark at each plug. Use a spark tester so you can actually see the spark! You'll want to be sure the spark is strong enough. Should be a nice blue color. Yellow indicates weak spark.

This test will eliminate or confirm problems with the plugs, plug wires, and/or the coil.

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post #3 of (permalink) Old 05-04-2007, 12:53 AM
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won't run

I do not know if this will help but I had a simular problem. The problem ended up being the catilitic converter. Check it out if you have one. just a thought.
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post #4 of (permalink) Old 07-26-2009, 12:02 PM
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mite b as simple as a new fuel filter?
bronco 1 is offline  
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