Hissing sound if brake pedal is pressed?

2002 CHEVROLET VENTURE
130,000 MILES • 6 CYL • 2WD • AUTOMATIC
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JUNL
  • MEMBER
  • 2 POSTS
My car is a chev venture 2002. If engine is on and it's on Park, hissing sound is heard if brake pedal is pressed. The sound is audible near the brake pedal location. The sound is like air being released like 'air break'. It seems I don't have any problem but the sound is audible and it's bugging me.

Thanks for any help.
Jan 7, 2008 at 10:39 AM
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ROCKWOOD84
  • ✓ASE Certified Mechanic
  • 103 POSTS
  • ASE Certified Mechanic
any brake fluid visable on the inside of dash by the brake pedal? brake light on in the dash? a master cylinder would make a small noise as you applied the pesal but not enough to hear sitting in the seat.
Jan 28, 2008 at 4:18 AM
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JUNL
  • MEMBER
  • 2 POSTS
I have it fixed. It was the brake booster. Thanks for the reply.
Jan 28, 2008 at 5:04 PM
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