Spray Pattern
Blade Wipe Pattern Check:
Wiper Blade Assembly And Element Replacement:
A correctly operating windshield wiper/washer system has a spray pattern that cleans 75% of the wipe pattern (Figure 14) within ten wiper cycles.
If a wiper arm washer nozzle (12, Figure 15) becomes plugged, apply air pressure. If the nozzle remains plugged, it must be replaced.