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Knock / Miss


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Old 03-05-2006, 09:40 AM   #1
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Knock / Miss

99 Blazer 4.3 4x4. The latest problem I have seems to suddenly advance the timing when I am in Park and give it a shot of gas. It feels like detonation. It also happens when driving but not as apparent. Even when you crank to start it, it will turn over a couple of turns and then it will missfire and almost stop the motor and then continue cranking. Is there a common sensor problem or should I take it to the auction?



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