does anyone know honda preludes?
 

i'm having a problem with my brakes traveling.in traffic when it's hot they go almost to the floor.they come back up but do it continually at stop&go traffic.only when it's hot.???? no leaks,pads are great,rotors are smooth.??????

you may not be leaking but the you might have air getting in the system from the brake booster check vacuum on booster might have cracks in it ,,,if not it might be the diaphragm in the booster ..good luck

your brake master go bad.replace brake master and flush all your brake fuilt.