Brake booster is bad still requires more than typical pressure to stop the vehicle

Tiny
DEC224
  • MEMBER
  • 2003 DODGE CARAVAN
  • 107,000 MILES
After bleeding the system 2x, the pedal still requires more than typical pressure to stop the vehicle. I've read comments about an ABS thing-a-mabob at the dealer/shop. Break booster bad?
Wednesday, October 12th, 2011 AT 11:15 PM

1 Reply

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

When you have a stiff brake pedal and it requires more than usual force, it typically means there is an issue with the vacuum assist for the brake system. As you know the brake booster provides that assist.

Frist check the vacuum hose connected to the booster. Make sure it is secured and there is not restriction on that hose or cracks.
The brakes will require more effort due to a vacuum leak on the hose to the brake booster.

https://youtu.be/4ktw1X4W_-k

I have attached diagrams for your reference.

Please let me know of any questions.
Thank you.
Images (Click to make bigger)
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Thumb
Was this
answer
helpful?
Yes
No
Thursday, October 7th, 2021 AT 3:11 PM

Please login or register to post a reply.

Related Booster Content

VIEW MORE