SPONSORED LINKS

Buick Lesabre brake systems

Tiny
DIANERZEBET
  • MEMBER
  • 1989 BUICK LESABRE
  • 150,000 MILES
I have two Buick LeSabres, a 1989 daily driver and a 1990 parts car. The '89 has a regular double master cylinder on a brake booster under the hood while the '90 also has a small tank labeled 'brake fluid under high pressure' next to master cylinder. What is the difference in the two systems and can they be safely interchanged by an amateur home mechanic if needed? So far I have used two brake lines to keep 89 on road. Also what is difference in electrical systems between a custom and the non custom?
SPONSORED LINKS
Monday, June 13th, 2011 AT 6:34 AM

3 Replies

Tiny
CARADIODOC
  • MECHANIC
  • 33,741 POSTS
The '90 has anti-lock brakes. Some of the steel lines might be the same but that's it. I'm not sure which system is used on that car, but if it's the Bendix-9 which is similar to Chrysler's Bendix-10, to safely remove that accumulator, pump the brake pedal at least 40 times. If the car has been sitting a while without a battery or turning on the ignition switch, the high pressure has probably bled off already on its own.
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Monday, June 13th, 2011 AT 7:41 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
To add to this, no, they are not interchangeable.
Was this
answer
helpful?
Yes
No
Monday, June 13th, 2011 AT 10:05 AM
Tiny
DIANERZEBET
  • MEMBER
  • 2 POSTS
Thanks so much for your replies. I was having problems with internet connections.
Was this
answer
helpful?
Yes
No
Saturday, August 20th, 2011 AT 2:22 AM

Please login or register to post a reply.

Related Booster Content

VIEW MORE

Sponsored links