take my foot off the gas and hit the brakes I hear a hissing noise

109,000 MILES • 4 CYL • 2WD • AUTOMATIC
Avatar
THE DOCTOR1204
  • MEMBER
  • 1 POST
When I drive over forty mph and take my foot off the gas and hit the brakes I hear a hissing noise from under the dash.
Feb 11, 2018 at 2:32 AM
Advertisement
Avatar
JACOBANDNICKOLAS
  • ✓Experienced Mechanic
  • 110,248 POSTS
Hi,

Replacing the booster isn't too hard. You will have to remove the brake master cylinder to access it. The worst part of the job is unbolting it from the firewall, It is one from the inside of the vehicle up under the dash.

If you look at the attachments below, I included the directions and the pics specific to your vehicle for replacement. However, there are two possibilities. First, if you have ABS, the procedure is different than if your vehicle doesn't have ABS. I will include the directions for both systems. First will be with ABS. Non-ABS starts at pic 18.

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

Take care,

Joe

See pics below
Apr 1, 2021 at 3:12 PM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle