Windshield Wiper Blades; Checking The Wiper Blades - Ford 2000 E-150 Owner's Manual

Maintenance and care
1. Reconnect the primary battery
positive cable.
2. Reconnect the primary battery
ground cable.
3. Unwrap the secondary positive
cable and reconnect to the primary
battery terminal.

WINDSHIELD WIPER BLADES

Check the wiper blades at least twice a year or when they seem less
effective. Substances such as tree sap and some hot wax treatments used
by commercial car washes reduce the effectiveness of wiper blades.

Checking the wiper blades

If the wiper blades do not wipe properly, clean both the windshield and
wiper blades using undiluted windshield wiper solution or a mild
detergent. Rinse thoroughly with clean water. To avoid damaging the
blades, do not use fuel, kerosene, paint thinner or other solvents.
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