Its pretty easy to do, You just have to get your hand in a funky position and "feel" the motor on the other side. I also would rule out the switches being bad. I went through hell recently trying to fix an intermittent problem with my windows till eventuall ALL of windows wouldnt work. I changed the motor(both sides) still nothing. Finally I decided to buy the switches(buttons) and guess what...all 3 were bad...changed them all and now they work like a charm. If your passeneger window is rolling down fine then I would switch the switches and see how it behaves on your driver's side window. If its still the same then you know the motor is bad...or the bushing is worn.
94 Oxford White GT. 18" Saleen wheels with BFG Drag Radials. Vortech S-Trim, etc. 89 Oxford White Notchback. Chrome Pony Wheels, Full exhaust, Pulleys, yadda yadda yadda, 94 GT Vert (Stockish cruiser)