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Old 06-13-2002, 02:47 PM
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Exclamation Help!! Vaccum noise comming from engine

During cold startups my 94' C220 produces a very loud vaccum noise that comes from the engine bay. I determined the cause to be a black cylinder looking component with hoses hooked up to it and an exposed fan inside of the component. It looks as if a cover is missing that goes over that component however I am curious to know if someone has ever had that problem or how to go about fixing it. Thanks -Eddie-
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Old 06-14-2002, 03:16 AM
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Join Date: Jan 2002
Posts: 352
the same thing happened to my non-Mercedes 4 cylinder car today. I started it up and it sounded like ****. So I popped the hood and looked around and I had found a tube had popped off a cylinder looking thing with many hoses attached to it. I think it popped off because I was redlining up my hill where I live. Gotta love Japanese engineering. As far as your C220, check if any hoses have popped off or if you here a hissing noise indicative of a vacuum leak. If you cant figure it out yourself then I would recommend taking it to the mechanic because I think the transmission pump is vaccum powered (dont quote me) and you dont want to have domino problems
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