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Old 10-05-2016, 03:15 PM   #1
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'03 test drive. Strange noise

Saw a possible purchase today. Tried to do a better job of checking this one out before getting the ppi

Body seems straight no evidence of body repair , stickers were found in front and back
Miles were 46k

I crawled around under front and back best as I could - looked a heck of a lot better than the last one I saw

The concerning noise was coming from the passenger rear , like a rattling - flutter
Seemed more pronounced when down shifting. I'm thinking exhaust pressure maybe muffler. Or more likely cat converter since it was mostly on one side.
I will be getting car inspected by Porsche shop but wanted to hear from this forum
Any thoughts ?

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Old 10-05-2016, 03:41 PM   #2
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heat shield strong possibility. The shield on the secondary cat held on by 3 spinlock bolts was my problem
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Old 10-05-2016, 04:36 PM   #3
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If that's it no biggie. It was hot under there after test drive so I didn't poke around with hands
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Old 10-06-2016, 09:41 AM   #4
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Garage
Possible water pump or other pully/shaft bearing on front of engine?
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Old 10-08-2016, 10:40 AM   #5
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Loose 'brick' in cat ? Could be expensive. Diagnostic is a bit invasive but the owner may agree to take it to a good muffler shop to verify ? Split the cost of the diagnosis? Check the price of new cat first !
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Old 10-08-2016, 11:22 AM   #6
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what would you estimate the cost at ?

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