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No. Worst case senario with a bad knock sensor is check engine light, and bad fuel economy. Also spark knock, which if not taken care of can cause excessive heat to build in the engine and cause premature failure.

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2009-04-01 21:54:04
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Q: If a knock sensor goes bad will it cause motor not to start?
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Related questions

Will the knock sensor cause the car not to start?

No it will not. The knock sensor is used to adjust the timing.


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