Brake Pedal sinking, dirty fluid cause?

[ATL86]

Umm... yes I did. That isn't bleeding properly. When you loosen the bleeder screw and release pressure, the weight of the skateboard needs to be enough to push the pedal all the way to the floor, forcing the fluid through. You need someone to sit in the car and push the pedal for you, or buy a one-man bleeder.

Also, dirty fluid will not cause a sinking pedal unless it has started to break down seals in the calipers, which is not common, especially in your case. The fluid doesn't seem too dirty to me by your description.

If there are no leaks in the lines, connections, bleeder screws, and master cylinder, the fluid level is fine, AND you've properly bled the system (RR-LR-RF-LF) then I'd point towards the master cylinder.

[hondaxpurt]

Umm... yes I did. That isn't bleeding properly. When you loosen the bleeder screw and release pressure, the weight of the skateboard needs to be enough to push the pedal all the way to the floor, forcing the fluid through. You need someone to sit in the car and push the pedal for you, or buy a one-man bleeder.

Also, dirty fluid will not cause a sinking pedal unless it has started to break down seals in the calipers, which is not common, especially in your case. The fluid doesn't seem too dirty to me by your description.

If there are no leaks in the lines, connections, bleeder screws, and master cylinder, the fluid level is fine, AND you've properly bled the system (RR-LR-RF-LF) then I'd point towards the master cylinder.

X2. Good answer

[ItsBlack]

Umm... yes I did. That isn't bleeding properly. When you loosen the bleeder screw and release pressure, the weight of the skateboard needs to be enough to push the pedal all the way to the floor, forcing the fluid through. You need someone to sit in the car and push the pedal for you, or buy a one-man bleeder.

Also, dirty fluid will not cause a sinking pedal unless it has started to break down seals in the calipers, which is not common, especially in your case. The fluid doesn't seem too dirty to me by your description.

If there are no leaks in the lines, connections, bleeder screws, and master cylinder, the fluid level is fine, AND you've properly bled the system (RR-LR-RF-LF) then I'd point towards the master cylinder.

ok, gotcha. Apologies, i'll work on that tomorrow.

but, i do feel the skateboard was pushing the pedal hard enough. It was wedged between the seat and the pedal and fluid would drip out whenever I loosened the screw, but hey you know more than I do.