Having problems with your 2004 GMC Envoy ?

I have a 2004 gmc envoy the check engine light came on shorlty after the car started to idle and drive rough...i took it to auto zone the test said misfire code 3.. i replaced the sparkplugs ..but my vechile is running horrible.. it almost feels like its going to die out.. all fluids are fine as well as transmission..what can it be?!

Posted / edited by AnonymousUser on : 15-01-2018

Answers :

Most likley a bad coil on the cylinder thats missfiring.
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I have a 2004 gmc envoy the check engine light came on shorlty after the car started to idle and drive rough...i took it to auto zone the test said misfire code 3.. i replaced the sparkplugs ..but my vechile is running horrible.. it almost feels like its going to die out.. all fluids are fine as well as transmission..what can it be?!


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