Hey Jason,
I take it you mean your windows (and not your locks) go up and down slowly. I have the same problem with my passenger side window. I picked up a couple of motors at a surplus store hoping they would fit. Well, after tearing the passenger side door apart to get the motor out, I found out the motors didn't match
. So I cleaned the tracks and guides, oiled them along with every moving part I could find and put it all back together. Works quite a bit better now, but I will still be keeping my eyes open for some cheap motors.
As far as switching the motors out, it's really not that bad. You have to remove the inner door panel. You then loosen the 4 bolts that hole the window regulator assembly (actually there's 2bolts and 2 studs) and unplug the electrical connector from the motor. You then finesse the whole assembly through the hole that is upper right corner of the door - passenger side (driver upper left). You may need to remove some of the door latch linkages to make room. Make sure you somehow support the window so it doesn't come crashing down. You can then remove the motor from whole assembly. Reassembly is the reverse procedure.
As far as you locks are concerned, I would test the electrical signal through the switches. Also, maybe remove the door lock actuators and jumper them to see how well they are working.
So that's it for me. I'm sure you'll get plenty of more good advice.
