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      Today, 12:50 PM   #1
Tang206
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Terrible rattle like sound from exhaust

Hey all, new to the forums and starting to get more into doing maintenance and repairs on my car myself. Was hoping someone could help me with a diagnosis...

On a cold start there is a terrible rattle like sound coming from the exhaust. It is not consistent though. It will be really loud, then quiet, then somewhat loud. Soon the exhaust sound goes back to normal. The sound will also happen at varying rpm speeds, generally at the towards higher rpms and only for a second.

Note: No aftermarket work has been done to the car that I know of. It has 44k miles.

Here is a video of the sound. In the video its at its loudest just a FYI

Last edited by Tang206; Today at 01:03 PM..
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      Today, 02:37 PM   #2
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Quote:
Originally Posted by Tang206 View Post
Hey all, new to the forums and starting to get more into doing maintenance and repairs on my car myself. Was hoping someone could help me with a diagnosis...

On a cold start there is a terrible rattle like sound coming from the exhaust. It is not consistent though. It will be really loud, then quiet, then somewhat loud. Soon the exhaust sound goes back to normal. The sound will also happen at varying rpm speeds, generally at the towards higher rpms and only for a second.

Note: No aftermarket work has been done to the car that I know of. It has 44k miles.

Here is a video of the sound. In the video its at its loudest just a FYI
The rattle noise in your video is loud and clear .And your issue is pretty simple .

1-You have the Inconel ///M-Performance exhaust

2-The Inconel lightweight chrome-nickel alloy is prone for cracks

3-You hear the rattle vibrations of the cracks

Check your exhaust for cracks like this ...
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