when i run the front window down , about 2/3rds way there is a clank.. sounds li on 2004 Pontiac Vibe

every time i roll down the window

Asked by for the 2004 Pontiac Vibe
2 answers
poss regulator issues or bad track. seek an insp after door panel is removed
Mind did this as well. Just recently it did it much louder, then popped, and hasn't done it since! The window still works great...