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Message: <blockquote data-quote="firetender" data-source="post: 13172" data-attributes="member: 1891">hello, I am a newbie to the group and looks like an excellent resource!I have a 2010 equinox with nearly 47,000 miles (belonged to my Mom).20 hours after dealer servicing recently for basic oil change, rotation etc., the engine light displays on dash and excess noise from engine?!After stopping immediately and checking oil, the dealer recommends I drive in for diagnosis and indicates a knock sensor code! Mechanic is excellent and confirmed that rattle volume was not my imagination!Does anyone have any input or comments on the severe history of timing chain defects please and recommendation for next steps? Very appreciated!</blockquote>