when I hit the brake, I could felt the front pass wheel shake. Does that means I need to replace the brake? or is the rotor wrapped? I know how to check if it's the brake pads but how would I know if the rotor needs to be replaced or not?

Thanks Guys.

 

if the wheel is shaking under braking, then it would most likely be a warped rotor. Depending on how bad it is and what kind of shape your rotor is in, you might me able to machine the rotor true on a lathe.

 

It's gonna cost less if you change your rotors yourself than going to shop to get them machined. You cannot do that yourself. Get new rotors.