How to Change the Wiper Arms on a 2000 F-150

by Robert Moore

    The windshield wiper has a history almost as long as the automobile itself, though electric windshield wipers didn't come along until 1926. The 2000 Ford F150 has the same basic windshield-wiper system as most vehicles on the road. It consists of a switch, motor, gearbox, linkage, pivot shafts, wiper arms and wiper blades. The wiper arms aren't difficult to replace, but you do have to follow a special procedure.

    Items you will need

    • Flat-head screwdriver
    • Socket set
    • Ratchet
    • Measuring tape
    Step 1

    Pry up the rubber cap that covers the nut at the base of each wiper arm, using a flat-head screwdriver. Remove the nut at the base each wiper arm with a socket and ratchet. Wiggle the wiper arm, then lift it off the shaft. Make a note of which arm is on each pivot shaft, as the wiper arms are side-specific.

    Step 2

    Turn the ignition key on and turn on the windshield wipers. Allow the pivot shafts to complete four complete cycles, then turn the wipers off. Inspect the wiper blades on each wiper arm; if they're worn, have shiny spots or are cracked, then replace them.

    Step 3

    Set the left wiper arm onto the left pivot shaft and the right wiper arm onto the right pivot shaft. Measure from the center of the wiper blade to where the cowl meets the windshield. Lift the passengers wiper arm off the shaft and adjust its position so the center of the wiper blade is within 1.7 to 3.0 inches from the cowl. Do the same for the drivers wiper arm; the driver-side wiper should sit anywhere from 2.6 to 3.7 inches from the cowl.

    Step 4

    Install the mounting nuts to each wiper arm and tighten them snug. Press the rubber cap over each nut. Turn on the wipers and make sure the drivers side wiper doesn't travel over the rubber seal on that side of the windshield. If the drivers wiper travels too far, remove the nut and move the center of the wiper blade a little bit closer to the cowl.

    Step 5

    Install the mounting nuts to each wiper arm and tighten them snug. Press the rubber cap over each nut. Turn on the wipers and make sure the drivers side wiper doesn't travel over the rubber seal on that side of the windshield. If the drivers wiper travels too far, remove the nut and move the center of the wiper blade a little bit closer to the cowl.

    Tip

    • To replace the wiper blades, squeeze the locking tab on the wiper blade and slide the old blade off of the wiper arm. Slide the new blade onto the hook on the new wiper arm; squeeze the locking tab until you hear a distinct click, then slide the blade fully onto the arm. Pull on the wiper blade to make sure it's secure.

    Warning

    • Do not rotate the wiper arm while it is on the pivot shaft, or you'll strip the splines on the shaft or the wiper arm.

    References