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Clanking noise coming from underneath vehicle

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Old 06-30-15, 02:31 PM
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johnsonand
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Default Clanking noise coming from underneath vehicle

After the vehicle was turned off, I stepped out and heard a clanking noise.

I couldnt see anything but here is the noise [ignore me and my brother talking]


I just bought the car, and am curious as to what it is...

Another noise its making, possibly related, is a crawling/scratching noise coming from behind the dash. If I had to guess, Id say something with the AC... maybe the heater air mix servo possibly making some racket.

Any info on these noises is beneficial. Thank you.
Old 06-30-15, 02:40 PM
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LeX2K
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Sounds like the exhaust contracting as it cools off this is normal, although it does sound pretty loud but that could be the camera magnifying the noise.
Old 06-30-15, 03:11 PM
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Fritz330
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I have never heard anything like that.
Old 06-30-15, 03:16 PM
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johnsonand
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It definitely sounds louder in the video than it seemed standing up, outside the vehicle. I essentially put the camera right up in it.

Ive heard cars do stuff like this.. where they kinda simmer after turning them off... Exhaust contracting would make sense.
Old 06-30-15, 04:25 PM
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Megafast13
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Default Clanking noise coming from underneath vehicle

Yeah it's exhaust contracting. It is quite loud, but that's all it is.
Old 06-30-15, 07:00 PM
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ES300NZ
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someone will have replaced an exhaust pipe not to long ago, it's contracting at a different rate to the older parts, which is why the noise is so loud. If you've ever owned a brand new car .. or a car that's had an new aftermarket exhaust ... yep kinda noisey for a while.
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