2005 Dodge Ram Left Rear Window Will Down Replace Motor Main Switch Door Power

If the glass goes down you know the motor and everything else electrical is okay. If it goes up smoothly if you help it, the first suspect is gummed-up rubber channels. Spray them liberally with Silicone Spray Lube. That goes on like water, evaporates, and leaves a film of "slippery" behind. Also check the cables and pulleys. A frayed cable may only go one way freely. A cracked pulley will let the window move unevenly and it can bind.