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Old 07-04-2016, 07:33 AM   #3
geraintthomas
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Join Date: Nov 2015
Location: South Wales, UK
Posts: 852
Exhaust leak, but it could also be the gasket that joins the CAT to the manifold. Mine did this, ticking on idle and when I pulled away. Eventually it suddenly got horrendous and I thought the car was misfiring. Took it into a garage and they fixed it for practically nothing by putting a new gasket on. After that the car's been silent.
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