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Posted

i have a 93 sc400 and a really stupid question:

what are those clicking sounds coming from beneath the car while its running and while its turned off and cooling down. it sounds like its coming from the exhaust or from heat shields - [assuming there are heat shields of some kind] - i know its a common sound effect - kind of like dieseling, but this is my first v8. it doesn't seem to affect performance, etc.

it doesn't speed up or slow down - in other words, its not affected by the idle. its more like liquid dripping onto something hot and popping.

Posted

Normal. They all do it. Metal contracting in engine, exhaust system etc.

Posted

The rapid clicking one is your CatBack. You can change it.

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