Been having a strange occurance lately, for some odd reason the passenger side window on my 1990 F150 doesnt always want to role up. Only happens on occasion. I can role it all the way down and it will role up just fine, turn the truck off with it all the way down and try and role it up and it will work just fine. But some days it just wont cooporate with me, seems like the solution for me is to leave it down over night and when i get up in the morning it will role up like nothing is wrong. I replaced both window motors about a year ago, so I doubt they could be faulty being that when they do work they work just fine. It used to be the driver side window but its swtiched sides. Cant find a fuse that could be the culprit of this.

 

the switches for the power windows on these trucks are known problems. try swapping switches. i bet the problem will go away.
whenever i go to junkyards, i always grab switch panels when i see them.

 

the next time it occurs, open the drivers door all the way & try it again, if it works broken wire between driver door & post. if it doesn't work grab wire harness between door & post and gently wiggle while trying window, works + wire. If still nothing close drivers door, open passenger door and repeat. this usually will confirm or rule out a wire in this area. Switches are next suspect, then plugs at motor, then motors or bad ground.

 

If one switch goes bad do you think it would cause the other not to work, It rolled up this morning as soon as i got in the truck. Its working with no issues now. Ill check out the other issues and possibly will buy some new switches.

 

Ill try this the next time it happens. It rolled up this morning, after it sat in the rain with a trashbag covering the window.