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kbradley
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Rattling Noise from Rear of Boxster
kbradley replied to dcboxster's topic in 986 Boxster Suspension, Brakes, and Wheels
I have been experiencing a seriously loud rattling noise (enough for people to stare!) when starting up and when sitting in traffic in my 1998 2.5 986 . The sound also happens over some road surfaces like you experienced. The sound was literally like a metal tin of washers being shaken. My problem sounded serious but it was just the heat shields below the cat sensors rattling due to corrosion. These are the heat first heatshields coming down from the manifold. My solution was just to apply a small quantity of exhaust cement in between the shield and exhaust. So far it has completely fixed the problem. If it fails in the future I may remove the heat shields and use exhaust wrap. Regards, K