iit doesnt make the noise goin over bumps... when i first start the car and its not warmed up yet it doesnt do it but when the car gets moving a litlle thats when it starts along withan occasional hissing noise? idk what it is im taking it 2 a mechanic this weekend but id rather try 2 fix it on my own i really dont think it has anything 2 do with the wheels... HELP ME OUT PPL!