You have to remove the door panel, and sub-assembly. The window regulator may be faulty, throwing the glass out of alignment. You will have to look inside the door panel and see what and why your glass is out of alignment, and see if you can make a minor adjustment, or replace a part.
〉 Answered on Dec 13th, 2007 by Amanda J. Pierce, MBA "AJ", Certified Mechanic, Project Coordinator; Primavera Scheduler at VIGOR Alaska Industrial Shipyard & BizzM3ch Solutions