Question about 2002 GMC Envoy
Hit heavy water in road during storm. Started missing and "SES" lite came on. Next day, local garage analyzer said #3 plug fouled. I removed coil pack and plug. Plug looked normal.Is there a way to check coil pack, or could it be something else??
Start the car take a squirt bottle of water and squirt the coil to see if it starts to miss again or see sparks jump.
Posted on Aug 01, 2009
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Posted on Jan 02, 2017
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