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J Egbert

November 28th, 2018 1:15 PM

Spark Plugs Bad 2012 Avalanche

2012 Chev Avalanche, 91k, spark plug #1 gone bad 2-3 times, dealer thinks it's rings, cracked piston, or carbon build up. I have warranty, but if carbon, then I'm paying dearly. Any thoughts?

SBchevyfan

November 29th, 2018 11:01 AM

Might want to see if you have a bad coil or plug wire.

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