After putting some time in with the '79 project, I decieded to work on the K5. If you have been following some of my posts, then you know that I bought the Blazer a couple weeks ago. It spent a week or so in the tranny shop getting a 700R4 rebuilt to handle whatever I throw at it (I hope), and I tell you it shifts strong. Anyway, every single power window has problems. The drivers motor works but wont moe the glass. I can push the glass up and down by hand. The rear window needs a "helping han to roll up. And finally I rolled down the passenger window, but the motor won't even turn to roll it up. With all of the rain that we have been getting lately, I figured the pass. window would be the first one to be fixed. I found a broken wire on the switch. I installed a switch out of another blazer, but the motor still wouldn't turn the motor to push the window up. Eventually, I was able to retrieve the regulator assembly out of the door. I assumed that since I replaced the switch, that the motor had to be bad, so off to O'Reillys' I went to buy another one. When I returned, I plugged in the new motor and It wouldn't turn the opposite direction either. Does anyone know where I should look now? Thanks in advance.