How to replace the brake booster?

Tiny
GGMYBLUE
  • MEMBER
  • 1992 CHEVROLET SILVERADO
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 230,000 MILES
Need to replace brake booster.
Saturday, August 28th, 2021 AT 2:57 PM

3 Replies

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

Do you know if your vehicle has hydro-boost (hydraulic brake booster) or vacuum booster?
I have attached diagrams for your reference of both style.
If you are not sure just upload a picture.
Let me know what you got.

Thank you.

https://www.youtube.com/c/2carpros/featured

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Saturday, August 28th, 2021 AT 9:22 PM
Tiny
GGMYBLUE
  • MEMBER
  • 2 POSTS
It's a vacuum booster with the big round drum.
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Saturday, August 28th, 2021 AT 11:26 PM
Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
First remove the brake lines from the master cylinder. You might want to syphon out the brake fluid from the reservoir to limit break fluid spilling all over.
You will have to remove the master cylinder from the booster by removing those two mounting bolts.
Also remove the brake booster check valve hose.
There is a push rod that attached to the brake pedal and goes into the fire wall to connect with the brake booster. Remove that push rod then the booster will come out.
I have attached some diagrams for your reference.
Let me know if you have any questions.
Thanks.
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Sunday, August 29th, 2021 AT 10:42 AM

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