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

When I first start it it makes a pinging or tapping noise, I think we used to

(2001 Pontiac Firebird)
call this noise tappet noise. It goes away usually after the engine warms up.
2 answers & 0 comments
Popular Answer
of Cassels Garage on February 13, 2012
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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General Diagnosis
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of Cassels Garage on February 13, 2012
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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on February 12, 2012
The oil is too thick and needs changed.If it only does it when it's cold.
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