Christina A. Thompson
* Removing rear wipers. When recommending the removal of rear wipers with a windshield washer spray nozzle, the cover must first be lifted and the nut that holds the wiper arm re-moved. The washer fluid tube should be detached along with removal of the wiper arm assembly. The rear wiper should be installed in the opposite motion.
* Cleaning the windshield. Before wiper blade installation, the windshield should be cleaned with a non-abrasive, non petroleum-based cleaner. Waxes from car washes and road contaminants create a thin film on the windshield. This reduces clarity. The windshield should be periodically cleaned to remove the film.
* Locating the source of streaking and chattering. Wiper streaking is caused by dry rubber that has hardened and cracked, or by tree sap, road tar and other substances on the blade rubber. Wiper chatter is caused by a curve in the rubber.
* Installing wiper blade refills. Do not recommend refilling wiper blades that are distorted, bent or badly worn. Instead, new wiper blades should be installed so that there is no damage to the windshield.
* Motor replacement timing. The wiper motor needs to be replaced if the wiper blades stop in a vertical position when they are shut off. A wiper motor also needs to be replaced if the wipers are in park mode when they are switched to intermittent.
* Solving electrical issues. There is a switch problem if the wiper blades move when the turn signal is activated. You should recommend replacement of both the turn signal and the wiper switches if this happens.
* The cause of an overheated motor. If the wiper motor ground is not tight, the wiper motor can draw extra amps and burn out. This could cause the wiper motor to stop working.
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COPYRIGHT 2005 Gale Group