Windshield Washer Hose: Description and Operation

Fig.9 Engine Compartment Washer Hose:

WASHER HOSES/TUBES
The washer plumbing consists of a small diameter rubber reservoir washer hose that is routed from the barbed outlet nipple of the electric washer pump/motor unit on the washer reservoir through a trough molded into the back of the reservoir above the washer pump and to the engine compartment washer hose. On models equipped with an optional V-10 or diesel engine, the reservoir washer hose is routed through routing clips on the top of the radiator fan shroud from the washer reservoir on the left side of the radiator to the engine compartment washer hose on the right side of the radiator. The engine compartment washer hose is contained within the right headlamp and dash wire harness, which is routed through the engine compartment along the top of the right front fender wheel house to the dash panel.

The engine compartment washer hose is connected to the washer reservoir washer hose and to the cowl plenum washer hose with molded plastic in-line fittings that have a barbed nipple on each end. The cowl plenum washer hose is routed from the engine compartment into the cowl plenum area through a trough formation located near the right end of the cowl plenum cover/grille panel. The cowl plenum washer hose is connected to the washer system check valve/wye fitting on the underside of the cowl plenum cover/grille panel. The cowl plenum washer hose and the two washer nozzle hoses are routed through integral routing clips on the underside of the cowl plenum cover/grille panel. The cowl plenum washer hose is connected to one nipple on the wye fitting and the two washer nozzle hoses are connected to the other two wye fitting nipples. The washer nozzle hoses are then routed along the underside of the cowl plenum cover/grille panel to the two washer nozzles.

Washer hose is available for service only as roll stock, which must then be cut to length. The molded plastic washer hose fittings cannot be repaired. If these fittings are faulty or damaged, they must be replaced.

Washer fluid in the washer reservoir is pressurized and fed by the washer pump/motor through the washer system plumbing and fittings to the two washer nozzles. Whenever routing the washer hose or a wire harness containing a washer hose, it must be routed away from hot, sharp, or moving parts;and, sharp bends that might pinch the hose must be avoided.