# 92 Honda Civic Brake

**URL:** <https://community.cartalk.com/t/92-honda-civic-brake/30575>\
**Category:** Maintenance/Repairs\
**Tags:** brakes\
**Created:** [May 17, 2009, 1:39am UTC](https://community.cartalk.com/t/92-honda-civic-brake/30575 "2009-05-17T01:39:22Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![sdouglasr6](https://avatars.discourse-cdn.com/v4/letter/s/c57346/32.png) [@sdouglasr6](https://community.cartalk.com/u/sdouglasr6)\
**Post date:** [May 17, 2009, 1:39am UTC](https://community.cartalk.com/t/92-honda-civic-brake/30575/1 "2009-05-17T01:39:22Z")

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When it is hot out (above 75 degrees air temp) and only when the air temperature is hot and nothing to do with the car being driven for a while or anything, the brake pressure gets really weak and I can almost put the pedal to the floor with greatly deminished braking ability. If I release the brake it will “refresh” and I can get a little more braking ability before I have to repeat the process. Why on earth does this happen? Again, it ONLY happens when it is really warm outside.

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**Author:** ![Roadrunner](https://avatars.discourse-cdn.com/v4/letter/r/d2c977/32.png) [@Roadrunner](https://community.cartalk.com/u/Roadrunner)\
**Post date:** [May 17, 2009, 1:54am UTC](https://community.cartalk.com/t/92-honda-civic-brake/30575/2 "2009-05-17T01:54:01Z")

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Is there any brake fluid leaking? Check behind the tires.

Is the reservoir fluid level up to the recommended full mark?

If no to both the above, then you MAY have a faulty master cylinder or booster.

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**Author:** ![rocketman](https://avatars.discourse-cdn.com/v4/letter/r/eada6e/32.png) [@rocketman](https://community.cartalk.com/u/rocketman)\
**Post date:** [May 17, 2009, 2:25pm UTC](https://community.cartalk.com/t/92-honda-civic-brake/30575/3 "2009-05-17T14:25:58Z")

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```
Sounds like your brake master cylinder is getting ready to fail. Get it checked ASAP. Rocketman
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**Author:** ![Sean01](https://avatars.discourse-cdn.com/v4/letter/s/f05b48/32.png) [@Sean01](https://community.cartalk.com/u/Sean01)\
**Post date:** [May 17, 2009, 5:26pm UTC](https://community.cartalk.com/t/92-honda-civic-brake/30575/4 "2009-05-17T17:26:09Z")

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When this happens, pop the hood and run water at low pressure from your garden hose over the master cylinder (the body of the unit, not the brake fluid reservoir); if that fixes the problem, and I think it will, you need a new master cylinder. Good luck.