Coil pack diagnostic?
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Senior User
Joined: Jan 2004
Posts: 427
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From: allen park
Coil pack diagnostic?
Is there a way to check a coil pack? Normally I'd just meter the primary to the secondary coil, but with these new fangdangled things I dunno where to start on them. Brand new plugs and brand new wires with good connections and multiple cylinders on one coil pack doing stupid stuff makes me think I have a dying coil pack. Any thoughts?
Elder User
Joined: Dec 2007
Posts: 842
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From: royal oak, mich
I meter mine for comparison. I foolishly replaced mine with Accel COPs and found 3 bad. They have more windings but not good on quality. Bad coils can sometimes not throw a code but not work right.
Hotshot
Joined: Jan 2004
Posts: 19,760
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From: St Louis
Try swapping the coil packs and see if the fault codes also swap.
kaboom: Metering COPS is close to a useless exercise. Besides, his truck doesn't have any.
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kunard333
1983 - 2012 Ranger & B-Series
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Aug 24, 2014 11:17 PM
