Windshield Washer Hose: Description and Operation
WASHER HOSES/TUBESWasher Plumbing:
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 to the check valve just below the cowl top panel behind the rear of the hood opening in the engine compartment. The other two barbed nipples of the check valve are connected to two short lengths of hose that each terminate at a molded plastic elbow that passes through a rubber grommet from the engine compartment to the outside of the cowl top panel near each wiper pivot. The two washer nozzle hoses are then connected from the elbow fittings on the outside of the cowl top panel along the underside of the wiper arms 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.