I searched the forums for power window problems. I didn't really find what i was looking for. My switches work fine. The issue i'm having i believe is mechanical. I have done the "auto-up" mod and it has been working for a year, no probs. I hit the switch the other day, it goes up and when it reaches its closed position, it starts making a horrible loud popping sound in the door. Is the window motor going bad? Is it easy to replace?