Alright I now have developed a whining noise from the rear of the car. I jacked the
car up and spun the wheels and it sounds like either the rotors are warped and scraping the pads or the rear bearing are shot. Any way to tell for sure? I have aftermarket rotors (slotted and drilled) and these are known to warp. I don't have alot of time during the week to visit the dealership and have read numerous threads in reguards to both problems. Any advice would be great.

 

You can simply remove the wheel and position the caliper away from the rotor (like how you change pads). Then spin the rotor by hand to verify the source of the noise.