2002 Mercury Sable V-6 115,000miles

2002 MERCURY SABLE
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BRETREED
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There is a loud knocking sound coming from the top end of the motor and the knocking accelerates when the car accelerates. What could this be and where do I start?
Mar 4, 2007 at 12:12 PM
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MERLIN2021
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sounds like a bad wrist pin on one of your pistons.
Mar 5, 2007 at 3:51 AM