well i just installed new pads and rotors awhile back and just now my brakes started to act up. when im driving i can feel the brake pedel shake a bit and some times when i step on the brake pedel it shakes violently. any one know what i should check? thanks in advance

 

check your rotors, see if they moved at all or if the heated up and warped

 

what kind of pads and rotors did you use?

 

just some oem replacements

 

just go through them step by step see if anything came loose and check if they have been bled and adjusted properly.