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Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Electrical> Coil Failure after heat up
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Topic Review (Newest First)
07-27-2003 02:05 PM
Kevin45 yep. sounds right. either the coil or a condensor can do that. simple cure...replace with new.

07-27-2003 09:36 AM
72 gmc the coil would be suspect in this case but if you still have the original ignition setup ie points and condensor i would be more suspicious of the cond breaking down after heating up also you may want to keep a test light or voltmeter handy to check for full voltage going into the coil when this happens good luck and hope this helps
07-26-2003 06:08 AM
Coil Failure after heat up

This can't be a new problem, as some old guy walking by the car the other day told me about it while I was trying to get it started.

I have a 39 Ford with it's original Flat head. the car starts and runs great, until it heats up, then I lose spark. Is this coil failure? and what does everybody else do about it?

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