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New exhaust making humming noise
Our garage has just fitted a new rear exhaust pipe to our 2005 Fiat Panda. My wife is fed up because the car now has a humming noise, especially at high speeds. The garage checked for leaks by putting a hand over the exhaust pipe-the engine stopped. Will the noise go with time?
Asked on 20 June 2014 by John Harris
Answered by
Honest John
It's the baffles in the silencer resonating. If you want the original noise you will need to make sure that a FIAT rear silencer box is fitted.
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