Hissing sound on acceleration D2 V50
Just said I would check here to see is there a common failure in a intercooler hose or manifold gasket or vacuum line or something similar that may cause this noise. Idles fine just under acceleration the volume goes up and its only new. Don't think its exhaust because it doesn't sound like a tractor. Had a route around intercooler hoses but cant see anything obvious. Thanks
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