Intermittent wipers dont work 03' silhouette They work on high speed no other speed will work As soon as I take it off of the high speed the wipers will stop and not park Fuse is fine help?

The wiper motor can be replaced reasonably easy, however your particular problem is usually caused by the circuit board that controls the wiper motor and the delay cycles, retraction, etc. The board is also quite cheaper than the entire wiper motor. It is also called a wiper pulse or relay board and can be found online from around $25 and up. The electronic board plugs into the wiper motor, and the electric cable plugs into the circuit board.