Question about 1999 Jeep Grand Cherokee

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I think my 99 grand cherokee power brake booster is leaking.Since the cold weather,it hisses in floorboard and deacreases on acceleration or when I press brake peal.When I unplug the vacum hose uner hood on firewall the hissing sound goes away.So does the power brake booster need replaced?

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Replace it , may as well do it before it quits altogether

Posted on Nov 05, 2010

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