Within the last month and half i have been getting a check engine light on becasue of a misfire on cylinder 6. The code is P0306.
I ended up changing a few things. I went with the Taylor 82605 8.2MM spark plug wires. Spark plugs were autolite XP5245 and new acdelco ignition coil pack.
I did the plugs first about three months before i was getting the check engine light. Everything was fine then the misfire came up. Thats when i started troubleshooting. I then did the wires gave it a week and the light went off but Bang back on. I then went with the new ignition coil light goes off the next day a week later bang its on. I noticed its very cold around 10 degrees when the light comes on.
Now keep in mind if the light wouldnt have come on i wouldnt have been able to tell there was a misfire. The truck runs great no matter how cold or hot it is. I also ran seafoam through brake booster to see if that would help it. Once again i can only tell tha the light comes on when its cold but the trcuk no matter what runs smooth and great.
Any ideas would be greatly appreciated.
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