When i bought my 94 9000cse the wiper arms and the cowl cover were off of it so i put them all back on and when i hit my washers they worked fine but then when i hit them a second time they would not turn off it just keeps spraying and the wipers keep going too. I unpluged the 20 amp fuse under the dash on the for the wipers so they would stop. but my washer pump is still going and it is out of fluid so my pump will burn up. i think it probably is a relay or the switch stuck closed but where is the wiper relay located? any help would be appreciated.