The wipers are hydraulic---there is a line that comes off the steering gear that goes to the wiper motor. Ck. to see if you are getting pressure to the wiper motor--you should be if the power steering is okay.There is a possibility that the motor is air bound if you have had the system apart--cycle the steering wheel back and forth with the wipers on to bleed any air--move them by hand if necessary. If that don't work, the motor might be faulty.
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Joe DV
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