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2001 Pontiac Firebird Question: When I first start it it makes a pinging or tapping noise, I think we used to

 

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Frenchylad, V6, Melbourne, FL, February 12, 2012, 06:57
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call this noise tappet noise. It goes away usually after the engine warms up.

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  • Answer #1

    February 12, 2012, 13:27
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     Enthusiast

    The oil is too thick and needs changed.If it only does it when it's cold.

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  • Answer #2

    Cassels from Cassels Garage, February 13, 2012, 04:53
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    Could be oil related. May have valve lifter that takes a while to pump up. But most likely it is an exhaust leak at the manifold. They can make a fairly heavy tapping/pinging noise cold. The manifold warms up & expands, thus the noise goes away.

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