What is your question?
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What is your question?
my engine makes a clicking sound from a cold start up and then stops after warming up. What could this be?

1 Reply
This sounds like an exhaust leak, most likely the exhaust manifold gaskets. You can get an estimate on this repair here: https://repairpal.com/estimator/buick/park+avenue and find a shop to perform the repair here: https://repairpal.com/buick-repair-in-melrose-park-illinois The shop will need to inspect this first to diagnose the problem.