140 Brake failure
Currently battling a braking issue on my 164
Symptoms after replacing the proportioning valve that has the failure sensor and bleeding are the pedal randomly going almost to the floor and loosing most of braking capacity. it happens unexpectedly which leads me to believe it may be the master cylinder.
i also am unable to lock the wheels up upon stamping on the pedal. prior to replacing the valve this was also the case however never had the pedal sink. is it possible that i simply haven't bled all the air out of the lines. the brake failure light has come on after this issue arose but not immediately