My brakes dont brake completely when I turn the steering wheel....?

Question

I just got brand new brakes and rotors installed about 3-4 months ago on my ranger. For the last month everytime I turn the steering wheel and brake at the same time my brakes somewhat vibrate and do not stop completely. I have almost hit a car parked in front of me while turning into a parking spot because of it. What could this be?

Answer 1

your rotors might be out of round

Answer 2

does the pedal go all the way to the floor?

you could have air in the brake lines and/or your vacuum is bad, and your brake booster doesn't have any vacuum when you are pulling a load during the turn of the truck