Ok guys here's my problem
After driving for about 30 minutes my brake pedal begins
to go down gradually after i brake.
I have to pump it for it to go back up, but it will
still gradually go back down all the way down.
What's the solution? Do I get a new master brake cylinder?
Any help would really be appreciated.
post here or email me at Sergio_Mercado@ahm.honda.com
Thanks.

 

Sounds like the MC is bad.

Change your brake fluid every other year after you get this fixed.

Use a good synthetic (e.g., valvoline) DOT 3/4 brake fluid when you get the MC replaced, also.

 

You need a master cylinder- I strongly suggest you get one from the dealer- it will be shiny new and last for a long time if you change your fluid, say, every 30,000 miles or 2- 3 years.

 

Not only that, get one that is bigger than one you currently have.
I thought I saw a post from someone with your generation CRX.
There were some good suggestions. They are still Honda, but a tad bigger.
With it you will feel stronger braking since each push of the pedal moves more fluid. Then when you later want a brake upgrade.... bigger calipers won't feel
anemic because of your punt master cylinder.

Just a thought.

 

Just wanted to confirm everyone elses diagnosis.

Bad Master cylinder. and yeah, throw in a larger one

D

 

Hey guys. I got a MC from CRX Si this weekend. So
the problem is gone and i also upgraded my MC.
thanks for the help.