Just bought an 04 LS430 w/94k miles. The drivers window goes down OK but it barely goes up. It will sometimes go up a couple of inches then when you let it set for a minute, it will go up a little more, then finally all the way. I've used shien grease on the channel and pulled the window switch out and cleaned the contacts. Still no improvement. I tried the search but Good Lord it's terrible. Any help would be appreciated.

 

Just noticed someone else has the similar problem so not much sense in double dipping.