- Remove the wiper blade from the arm. Refer to
Windshield Wiper Blade Replacement
.
- Attach a scale to the wiper arm tip and
measure the force required to lift the wiper arm perpendicular to the windshield
to the normal working height of the wiper arm (the height with
the blade attached).
The force required should be between 8.3-10.1 newtons (30-36
ounces).
- Replace the wiper arm if tip pressure is not within specifications.
Refer to
Windshield Wiper Arm Replacement
.