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Mushy Brakes

Tiny
JOHNNYEJ
  • MEMBER
  • HONDA ACCORD
1990 Honda Accord EX, 175,000 Miles 2.2L? Engine. When I run the A/C and it gets hot outside the brakes get very soft, and after a short period of time while applying them will bottom out. When it is cool outside, this is no problem with or with out the A/C on. How can I fix?
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Monday, July 16th, 2007 AT 4:48 PM

6 Replies

Tiny
BRUCE HUNT
  • MECHANIC
  • 3,754 POSTS
That car has the booster system on the brakes I believe and it sounds like a vacuum problem. Does the brake fluid reservoir ever get low?
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Tuesday, July 17th, 2007 AT 4:40 PM
Tiny
JOHNNYEJ
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  • 4 POSTS
Brake fluid at normal level.
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Tuesday, July 17th, 2007 AT 4:42 PM
Tiny
BRUCE HUNT
  • MECHANIC
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If the fluid stays at the same level and does not drop I would suspect the booster.
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Tuesday, July 17th, 2007 AT 4:43 PM
Tiny
JOHNNYEJ
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  • 4 POSTS
Thanks Bruce, Where is the booster located and is this a possible FIY project?
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Tuesday, July 17th, 2007 AT 4:45 PM
Tiny
BRUCE HUNT
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  • 3,754 POSTS
The booster should be behind the master cylinder. I would look at the vacuum line for any problems. Leaking is my suspicion.
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Tuesday, July 17th, 2007 AT 4:50 PM
Tiny
JOHNNYEJ
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  • 4 POSTS
Thank you, I'll check it out.
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-1
Tuesday, July 17th, 2007 AT 4:51 PM

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