My GMC 2002 Sierra has the service 4WD light on. The truck moves in Auto 4WD, 4WD HI, and 4WD Lo, but will not move in 2WD HI. The truck is rarely in 4WD anything and allways in 2WD. Please Help.
have the same problem?
Sunday, April 4th, 2010 AT 1:44 PM