ok i know im new on this board, but i have a quick question... my cousin has a 06 4.6 crew cab 2wd and the driver side window will roll down but does not always go up when you hit the button, you have to screw with it for a while before it will eventually go up but goes up intermententlly (iunno how to spell that word)... there are no noises as if it was a regulator going/gone bad and when the window does go up it seems to have the right speed... im going to check it out for him thurs and wanted to get some ideas... im hoping it's just the switch but am not getting my hopes up... iunno if any of yall have some suggestions lemme know. thanks.

EDIT: i did a search and came up with nothing, but did find a write up on how to take the door panel off, which is good!

 

Try a search on "How to Fix a Defective Window Switch"