Ignition Coil Question! - Pontiac G6 Forum
 
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post #1 of 2 (permalink) Old 04-04-2012, 07:22 AM Thread Starter
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Ignition Coil Question!

the 3.5 L GT has a single coil pack for the 6 wires. Is it possible for only one of the leads in the pack to go bad, or would the whole unit fail at once? Can a bad coil pack cause low compression in a cylinder? Thanks for any and all input!
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post #2 of 2 (permalink) Old 04-04-2012, 12:03 PM
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There are just three coils in your coil pack. Cylinders fire simultaneously in pairs: 1&4, 2&5, 3&6. Thus a bad coil would affect both cylinders.

"Can a bad coil pack cause low compression in a cylinder?"
No.



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