2007 Chevy Silverado window problem

Question by steve.gold.123 posted 6 months 1 week ago in Silverado

I have a 2008 Chevy Silverado 1500 (newer body style). The passenger window is acting up. It will roll down from both the drivers side master switch and the passenger side switch, but not back up. Occasionally, after quite a while, if I rev up the engine while continuously trying the window switch, it will go up. Does this sound like the motor? Or two bad switches (driver master and passenger)? Relay? Please help. Thanx.