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What causes the sound of air hissing in dashboard around stirring column?

Tiny
TERESA IRVING
  • MEMBER
  • 1984 FORD CROWN VICTORIA
  • 65,448 MILES
I started the car and heard a loud pop under the hood then the sound of air which stopped after the car was in drive. Now however, the sound is all the time no matter what gear it is in. Could this be a vaccum hose?
Monday, February 13th, 2012 AT 10:08 PM

2 Replies

Tiny
CADIEMAN
  • MECHANIC
  • 3,544 POSTS
Youll need to take the under dash panels down to trace this noise. Its a vacuum hose.
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Monday, February 13th, 2012 AT 10:20 PM
Tiny
CJ MEDEVAC
  • MECHANIC
  • 11,005 POSTS
OPEN YOUR HOOD, DISCONNECT THE BRAKE BOOSTER VACUUM LINE AND CAP/ PLUG THE LINE---CRANK HIM UP

DID THE HISSING STOP INSIDE?

IF SO, YOU NEED A NEW BRAKE BOOSTER

IF NOT---DIG INTO THE DASH!

THE MEDIC
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Tuesday, February 14th, 2012 AT 3:42 AM

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