No. It literally just makes it harder to steer. When the car is in motion, steering isn't too hard, just gotta put a little more strength. Parked or moving below 10 mph, it's a pain in the ass to steer, depending what car it is. It's not going to damage the car, the pulley will be fine. I have a 95 GT without PS and it's extremely difficult to drive (only because of the weight) but it's not too bad.