Driving on a gravel road results in my Van's brakes not doing anything when the pedal is pushed <img src="/forums/images/graemlins/scared.gif" alt="" />. Pumping the pedal brings the brake level back up again.

I bled the system and checked for leaks on the slave cylinders, nothing. Faulty master cylinder?


'99 Isuzu Frontier (Rodeo) Intercooled 280DT LX