Spark issues
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Joined: Feb 2018
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Spark issues
Hey folks, I have a 1991 f150 in-line 6. The truck started bucking hard at low RPM. Replaced the ICM fixed it right away. Next day started again. I figured since it had the original dizzy in it that maybe it was heating up and frying the ICM. So I replaced the dizzy. Now I have no spark coming out of the dizzy to the plugs. Spark from coil to cap but none coming out. I’m truly at a loss here. Any help at all would be greatly appreciated. Hope I haven’t posted wrong never done this before and not real computer savvy. Thanks in advance.
More Turbo
Joined: Nov 2014
Posts: 686
Likes: 11
From: Plainfield, IN
New dizzy or refurbished? Sounds like you may have a faulty PIP in the distributor. Get a Motorcraft or high quality new distributor, to eliminate a faulty PIP. A lot of the cheaper distributors are bad right out of the box.
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