[trinifoci]

hi guys, just wondering if anyone has came across this problem and what was/is a possible solution.I did a brake pad and rotor change recently about ,a month now and i have since felt the brake pedal suddenly going extremly soft on me even sometimes while i'm braking.I would have to release the brake pedal and brake again for it to come back to a firm position.When it goes soft, i have to brake to the floor to slow down.I checked for leaks since then, but the brake flulid resv has not changed, so no leak right? As for the car its a 03 auto with ztec engine, any ideas? :( this is driving me nuts...grrr