i have a 90 limited. i have a slow weak wiper. stops real easy and if windows are dry it wont even slid across them. i swapped the motor and assy out. it was used but worked great on the jeep it came off. i have done some searchin but nothin has came up with a sim prob. i have found some stuff about the lil silver "stalk" been bad and causein like the intermittin part go out or one of the speeds. mine does it in all speed and dont change. if i run one wiper its not as bad.