Cadillac 22155381 Blade, Windshield Wiper

In order for the windshield wiper blades to remain effective and last long, it is important to keep the windshield and blades clean as dirt, tree sap, road tar and other contaminants can cause streaking, smearing and blade deterioration. At least once a month one should use commercial glass cleaner to wipe the windshield and afterwards wet rag should be used for cleaning the rubber blades. Do not manually move the wipers across the windshield because this can damage the motor and drive mechanism. With the wiper switch in LOW speed position and ignition switch in ACC position you can inspect or replace the wiper blade elements. When wiper blades are about vertical on the windscreen turn ignition switch OFF. Check on wiper blade elements for cracks, breaks, tears or signs of smearing, streaking or chattering; replace them if necessary. Ozone deterioration typically limits element life to approximately one year. Anco, Trico or polycarbonate are examples of various refill types for vehicles with aftermarket blades. For different types there are different replacement procedures involving release buttons, metal backing strips, tabs or locking devices. While installing it is necessary to ensure that all frame jaws engage with refill since in case of metal blade holder touching the glass during wiper operation it may scratch it.

For 1990 vehicles, pull the retaining latch and remove the arm from the transmission shaft.

It may indicate that the wiper motor is damaged internally and should be replaced.

Operate the wiper motor at least once to ensure correct positioning. Then, recheck using the highest wiper speed on a wet windshield to confirm that the arms and blades do not contact the windshield trim.

Turn the ignition ON and place the wipers in the park position, then turn off the ignition.

When inspecting the wiper blade elements, check for cracks, breaks, tears, or signs of smearing, streaking, or chattering. If any of these issues are present, the blades should be replaced.

The rubber element can be removed from the blade assembly by using pliers to pinch the metal backing of the element, then sliding the element out of the blade assembly.

If a coil spring blade retainer is present, you should insert a screwdriver on top of the spring and push downwards to remove the blade.

The windshield wiper motor also serves as the drive system for the windshield washers.

In the spring-type retainer clip method, a small pair of pliers can be used to squeeze the retainer clip together.

Start by disconnecting the negative battery cable and removing the instrument cluster trim panel. Then, remove the switch from the rear by taking out the 2 mounting screws.