The system holds vacuum as far as I can tell, if I pull the hose off the (power assist unit? the drum thing with the master cylinder bolted to it)with the engine off for a while there is a rushing sound. If I apply the brakes while driving it takes much more effort to stop the vehicle and the little woosh noise it normally makes when braking sounds continually (my 5 yr old says it sounds like a snake) and also the idle is very poor. Is this a power assist problem or a check valve or something else?
Aug 2, 2008 at 10:58 AM