2005 Mercury Mariner Our Seems Making Hissing Sound Behind Brake Pedal Clue

2005 MERCURY MARINER
122,000 MILES
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JEROD3207
  • MEMBER
  • 2 POSTS
Ok our mariner seems to be making a hissing sound behind the brake pedal and don't have a clue what it could be, any suggestions?
Dec 23, 2012 at 1:31 PM
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ASEMASTER6371
  • ✓Experienced Mechanic
  • 52,796 POSTS
power brake booster leaking vacuum and needs to be replaced.

Roy
Dec 23, 2012 at 6:15 PM
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