I have a 1999 chevy Malibu. I am having an issue with breaks that I can not seem to track down. My driver's side front, pads and rotors are wearing out within days. I have replaced the break line, caliber, wheel bearing/hub. What can it be?

 

Could be a stuck disk brake piston, but a few days and a new set of pads is gone? Thats awful fast. Take the car out and coast it with the engine off (someplace safe and out were not many people travel much.) You getting any noise, vibration or the smell of pads getting too hot? Does it pull?. Does it coast much or come to a stop?.