I have a small problem when the car is driven around in first or second gear in a parking lot, or rush hour traffic on the freeway for more than five minutes my brake pedal goes to the floor. I can pump the fool out of it, but it will not hold pressure. There are leaks, the fluid level in the resivour is still full. Also the idle will go from 800 to 1200rpm.
I have checked the brake booster check valve and replaced it, but this did not solve the problem. After running the car at normal highway speed the idle drops to 800 and I have brakes.......

90 Accord LX
Any suggestions, I am tired of using the e-brake to stop me.

 

99.9% you need a new master cylinder. Not too bad.

Edit: I think the brakes get better when moving on the highway 'cause everything cools down a lot and the M/S holds the pressure better.


[Modified by 4doorH22, 1:45 PM 8/11/2002]

 

thanks, found one online for 90 bucks, I will give it a try........

 

Get one from Honda, it will fit better and last longer. Spend a few extra bucks!