Ok I live on a huge Hill in SF, My home in on a inclide and I have to reverse out of my garage and go downhill everymorning.

When I reverse its ok..then when I shift to drive and proceed downhill..i hear a stutter (like thump thump) as soon as the car starts moving..now I have my foot on the brake pedal because I am going downhil..and have to release it slight and press the brake again for the stutter to go.

What can it be?..im about to spray a whole bunch of brake quiet on my rotors...Now I just bought the car 2 weeks ago, but before I take it back I want to know its is something I can take care of with Fluids if whatever?

 

Sounds like the ABS test just after you start the car. It's OK.

 

well i sprayed a whole bunch of brake quiet....got sticky so i drove it about 5 feet..then heard a big thump..sounds like it got glued and retracted..so i sprayed a whole bunch of brake cleaner to clean it..and it drives fine now....watever it was hopefully its gone

 

it could be just rust forming ont he brakes and pads it gets foggy and wet here every night