I am having trouble with my windows on my 99TL, they seem like they have a mind of their own. Some days they want to work and then they decide that they dont want to. When I try to put them down I can hear them squell (all but the driver side). Does anyone have any suggestions?

 

Check all the wires, switches, connectors. could be broken or corroded. As for the squeel, Grease the rails?