Camry Brake Booster Problem?

May 11, 2004

Hi,

I have a 93 camry le and am having assisted brake problems.

Everytime I bleed the system, the brakes work fine for a day. After 1 day, alot of force is required in order to brake.

I made sure there were no air bubbles in the system. In fact, I changed the master cylinder hoping that it would work. nope.

I checked the brake booster for air tightness, and it checks ok. with engine off, depressing brake each time will be less and less(tighter and tighter). Holding the brake depressed will stay in position longer than a minute(and more). Then turning on the engine will "relax" the brake pedal position.

The brake pads are in good condition. Like I said, after bleeding the brakes, it works fine for a day.

Don't know what else I am missing?

Please help.

Dan