2008 Ford C Max Hissing Noise Pressing Brake Pedal Also Flutuating Revs Two

2008 FORD C-MAX
30,000 MILES
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Hissing noise when pressing brake pedal also flutuating revs don't no if the two are related any help would be great thanks
Feb 6, 2013 at 10:58 AM
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RASMATAZ
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Have the brake booster check
Feb 6, 2013 at 11:07 AM
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