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2004 Envoy xl 4.2 v6 PO302 cylinder 2 misfire which is the number 2 cylinder?

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It's in order, from the front of the motor to the firewall. #1 is nearest to the radiator, # 6 is at the firewall.

Posted on Mar 31, 2015

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2004 GMC Envoy misfire


If you pull the #2 plug out and start the engine do you see a spark? You didn't mention if you checked the wires or not, but it could be a bad plug wire. If there is a spark, I'd try and see if the #2 injector is actually firing like you mentioned above.

Jan 24, 2013 | 2004 GMC Envoy

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Gmc envoy with misfire in number 1 cylinder


You could have a bad spark plug or a bad coil pack for cylinder 1. Or it could be as simple as a poor connection at the coil pack.
Other possibilities are, bad injector or poor compression.

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code po302 is: number 2 cylinder is misfiring. could be plugs, wires, coil, etc. check for a bad or plugged up number 2 injector

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Misfire on number 2 cylinder. Replace the plug, if it still does it replace the coil on number 2

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PO302 is being a misfire, could mean the plug is bad or the coil is bad for that cylinder. Which can give you the misfire reading and the system to lean codes. Check the #2 coil for firing.

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