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Old 09-12-2011, 03:15 PM   #4
buzzinhalfdozen
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Join Date: Sep 2006
Location: Bellevue Ohio
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Default Re: Testing coils on a coil over plug system?

Art, if the engine runs when not in gear, how well does it run? does it sound normal, snappy throttle response? Though it is possible that you have an ign. problem, I'd doubt it would start at all with a bad coil, 4 cyl. engines with just 1 hole out tend to just barely run. Assuming you have headers, easiest way to check for dead hole is a spray water bottle, start engine let run a few minutes, then spray header tubes, should be instant sizzle on all. That will at least tell you if you've got a dead one without spending a dime. If you find that you do indeed have a dead cyl. as mentioned before swap coil with another cyl. if misfire follows you've got a bad coil, if not look at the control circuit for that coil. Good luck ans please let us know what you find. Joe
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Joe Buchanan SS/BX 3117
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