Pinging After Turning The Car Off

[kaygee68]

I just bought a used 2004 es330 with 37K miles. I've noticed a very audible pinging noise as the car cools down after driving. I know many cars make that noise -- like a very taught wire being picked -- but it seems especially loud and long. Any ideas what is causing this or if I should be concerned.

[ArmyofOne]

I just bought a used 2004 es330 with 37K miles. I've noticed a very audible pinging noise as the car cools down after driving. I know many cars make that noise -- like a very taught wire being picked -- but it seems especially loud and long. Any ideas what is causing this or if I should be concerned.

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Negative, no cause for concern. Most cars do this, it is the exhaust system (namely the heat sheild and the cat) contracting as the metal cools down. not a problem. :D