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Rattling Noise?

Mathelo
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Mathelo Member

Mathelo

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Posted

I have a 2003 Boxster S with 35,000 miles. It has recently developed a 'rattling" noise from the rear of the car. It seems to only occur when in gear and dimishes slightly as the car warms up. I've revved the engine in neutral and I don't hear the noise. The sound reminds me of the noise rocks would make in a spinning hub cap.

Any ideas what this might be?

Thanks!

Louis

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Mathelo Member

Mathelo

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  • Author
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I have a 2003 Boxster S with 35,000 miles. It has recently developed a 'rattling" noise from the rear of the car. It seems to only occur when in gear and dimishes slightly as the car warms up. I've revved the engine in neutral and I don't hear the noise. The sound reminds me of the noise rocks would make in a spinning hub cap.

Any ideas what this might be?

Thanks!

Louis

No one?

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jthailer Member

jthailer

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Posted

Since no one else has chimed in, I have a similar rattle, but have been unable to reproduce it while the car is not moving. Probably something loose that we can't pinpoint. I am wondering if it is something rattling around in the catalytic converter.

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mcmike27 Member

mcmike27

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Guy's another area to 'listen' to and our dealer found my 'mystery' rattle by putting the car on the lift and running it with an automotive stethascope to his ear found our rattle.

It was some loose debris in the muffler being blown around under accleration. The solution short of a new muffler (ours is original to the car vintage 98 986) was to drive it 'aggressively' around a few corners and then the 'rust' ball re lodged in a baffle and pfffttttt the rattle was gone.

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Mathelo Member

Mathelo

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  • Author
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Guy's another area to 'listen' to and our dealer found my 'mystery' rattle by putting the car on the lift and running it with an automotive stethascope to his ear found our rattle.

It was some loose debris in the muffler being blown around under accleration. The solution short of a new muffler (ours is original to the car vintage 98 986) was to drive it 'aggressively' around a few corners and then the 'rust' ball re lodged in a baffle and pfffttttt the rattle was gone.

I like that solution. just blow it away but I suspect that's not my problem. I pretty much drive my Boxster like that every day. B)

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  • 1 year later...

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