Okay car is a 98 Civic 2door. The driver window will roll up and down fine but when the glass reaches the top (fully closed) the motor doesnt stop it continues to push and the glass stutters and bounces leaving a half to a quarter inch open. Its a little hard to explain so see provided link for video: YouTube - Broken Power Window
Can anyone tell what causes this or what part I'll need to buy before I gut the door apart to fix it? Thanks in advance.