hissing sound under the dash, not the brake pads

2007 CHEVROLET MALIBU
125,000 MILES • 2.2L • 4 CYL • AUTOMATIC
Avatar
LORENZAANSTEAD
  • MEMBER
  • 15 POSTS
I just put new brake pads on my car and I took it on a test run and now I hear and hissing sound when I go to hit the brakes to stop.
Feb 9, 2015 at 2:45 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
Advertisement
Avatar
KASEKENNY
  • CAR REPAIR CONTRIBUTOR
  • 18,907 POSTS
Below you will find the process form the replacement of this but you will need to bleed the brakes as well. Here is a guide for this as well:

https://www.2carpros.com/articles/how-to-bleed-or-flush-a-car-brake-system

Review this material below and let us know if you have other questions. Thanks
Mar 26, 2021 at 6:48 PM
Advertisement
Avatar
JACOBANDNICKOLAS
  • CAR REPAIR CONTRIBUTOR
  • 110,190 POSTS
Hi,

replacing the vacuum brake booster isn't too hard. The worst part is unbolting it from under the dash. Also, you will need to remove the brake master cylinder.

If you look through the pics below, they include the directions and pictures which correlate with the directions. These are specific to your vehicle.

I hope this helps. Let me know if you have other questions.

Take care,
Joe
Mar 26, 2021 at 6:50 PM