Hello,

I recently had a problem with my clutch in which it would sink with no pressure and I could not engage any gear. I took it to the garage and they replaced the slave cylinder and that seemed to do the trick.

However, I then noticed that there was very little pressure behind my brake pedal and you pretty much had to push it to the floor to brake. I took it back to the garage and they replaced the master cyclinder and bled the fluid but still no joy. They then replaced the valve compensator and bled the lines again and this seemed to do the trick.

BUT! about a week later I had to slam on my brakes to avoid a cat and since then I've had the little / no pressure problem again : (

Any ideas? I've seen a few threads with a similar problem but no-one seems to post the solition when they're sorted : /

I'm not willing to write off the fact that it went in with a clutch problem and then came back with a brake problem as bad luck. Are the two related?

 

They are not likely related unless they share a fluid reservoir. BMWs have that idiotic system, but I haven't seen any Hondas with it.

Your caliper pins are probably stuck. That would cause the piston to travel further than necessary, causing low pedal pressure and long travel. It would also cause the problem to become worse after a panic stop when you jam the brakes down.

Have them check your caliper pins.

 

I'll certainly suggest that to my mechanic, ta. I'm just not sure how it was working when the valve compensator was replaced though. If the pins had gone surely it still wouldn't have worked?

 

I don't know what your location is. Is the shop much warmer than outside? The pins could also have moved back for whatever reason when they bled the system. Maybe when you jammed on the brakes, the pins moved back far enough to sieze up again.

Or maybe the new master cylinder was defective? Jamming on the brakes killed it or something?

The caliper pins are the most likely culprit and are easy/cheap to check and fix.

 

Okay, we'll give it a go. If it works, I'll be sure to mention it hear just in case it helps anyone else out too : )

Ta.

 

Well that didn't sort it so we've basically done the same thing as when it was 'fixed' the first time and put a new valve compensator in as a temporary fix and hopefully I won't need to slam my brakes on again.

 

Problem has come back! Back to my mechanic it goes...