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Tapping noise when car starts - 2003 Chevrolet Impala

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Sounds like it could be your valves ticking. Sometimes this is caused by oil not getting to the hydraulic valve lifters for a couple seconds until the oil pump can get the oil pumped up to the top of the motor where the valves are. You might consider asking your mechanic to run a slightly thinner weight oil in your engine on your next oil change. Also, be sure to get frequent oil changes with new filter each time.

Hope that helps!

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Posted on Oct 01, 2010

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