Front Wiper and Washer Systems

The windshield wiper/washer system consists of a permanent magnet, positive-park wiper motor assembly, a transmission assembly, wiper arm and blade assemblies, a washer pump mounted on the side of a washer solvent container, and a turn signal- type wiper/washer switch assembly with detents. The die-cast aluminum housing of the wiper motor provides cooling for interior parts. The wiper motor is equipped with RFI (radio frequency interference) suppression.

The wiper motor drives a crank arm that attaches to individual transmission links for both the right and left sides. The transmission links are mounted in front of the windshield inside the fresh air plenum. The transmission transfers rotary motion from the wiper motor into reciprocating motion at the transmission drive shafts.
The wiper motor is sealed. No service parts are available. Replace the motor if service is required.
The delay module is also sealed and attached directly to the wiper motor. It is replaced as a unit during service.






WIPER/WASHER OPERATION
The electronic circuit board controls all the timing and washer commands. When the wash button is pushed for more than 1 second, washer solvent is sprayed on the windshield as long as the button is held. This is accompanied by wiper activity that continues for about 6 seconds after the button is released.

Rotating the wiper switch to the "LO" or "HI" speed position closes the respective brush circuit and the wiper motor runs at that speed.

Rotating the wiper switch to the "DELAY" mode operates the wiper motor intermittently. The delay can be varied by rotating the switch back and forth.

For immediate wiping activity, rotate the wiper switch to the "MIST" position. Wiping will continue as long as the switch is held.









WASHER HOSE ROUTING
Washer hose routing begins at two nozzles mounted to the cowl vent grille. The hose is clipped in various places to the cowl vent grille, then exits the cowl area through a grommet on the engine side of the cowl. The hose continues along the LH inner tender to the washer solvent container. The washer solvent container is mounted where the LH inner fender meets the radiator support.