Windshield Washer Hose: Description and Operation

WASHER HOSES/TUBES
The washer plumbing consists of a small diameter rubber hose that is routed from the barbed outlet nipple of the washer pump/motor on the washer reservoir through the engine compartment along the headlamp and dash wire harness near the right inner fender shield to the dash panel. The washer hose passes from the engine compartment into the cowl plenum area through a dedicated hole with a rubber grommet near the right end of the cowl plenum panel. Beneath the cowl plenum cover/grille panel, a molded plastic in-line fitting with barbed nipples joins the engine compartment hose to a cowl plenum cover/grille panel hose. The cowl plenum cover/grille panel hose is routed through locating clips molded to the underside of the cowl plenum cover/ grille panel to a molded plastic wye fitting with barbed nipples and an integral check valve near the passenger side washer nozzle. Two hoses are then routed from the wye fitting through additional locating clips on 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.