Hi,

I fitted some braided hoses yesterday, which seem to be okay and I can't see any leaks. I then bled the brakes, going round the car twice and using about a litre of fluid, long past the point where there were air bubbles.

The pedal felt kind of solid, until I started the engine and then it easily went to the floor. With the engine running I have to pump the pedal a couple of times to get some pressure, but the pedal is noticeably further down than usual, and that doesn't last either and it falls to the floor. I've done the whole bleeding procedure another 3 or 4 times and used another litre of fluid, without any improvement.

The fluid level isn't dropping, and there are no visible leaks on the lines. I read something (which I can't find again, thankyou search) how pressing the pedal all the way to the floor during bleeding can damage the master cylinder seals, and unfortunately this was exactly what I was doing.

So am I correct? Is there anything else that might cause these symptoms, or anything else I should check first? Is it possible this is just air still in the system?

Thanks for any help.

 

So it was fine before the line install?

You didn't happen to let the reservoir run dry did you?

It could be the air in the abs system.

 

I think it was fine before the lines. I was thinking that it wasn't as firm as it ought to be (which is why I got the braided lines), so I don't know if that perhaps indicates an existing fault, and the other potential issue is a coupld of times I've heard a groaning noise as I've come to a standstill.

Didn't let the resevoir run dry whilst bleeding, and I don't think it would have done whilst changing the lines as I didn't lose that much fluid.

If there's air in the ABS system, how do you get it out?

 

As far as i know you need a positive pressure bleeder.