How do you go about diagnosing where an exhaust leak is coming from. I think it might be the exhaust manifold but I am not sure. Sound is from under the hood.
One trick I was taught when I worked part time at a repair garage was using a helper have one person take a rag and block the exhaust pipe temporarily (on a cold running engine, otherwise you will burn yourself) while the other person listens for the leak. The leak with "whistle" and you shoule be able to find it quite easily.
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