Grand Cherokee 2WD V8-4.7L VIN N (2000)
Windshield Washer Spray Nozzle: Description and Operation
WINDSHIELD WASHER NOZZLE AND PLUMBING
The windshield washer system plumbing begins at the washer pump near the bottom of the washer reservoir below the left front wheel house
extension and between the left inner and outer fenders. The washer reservoir hose is routed from the washer pump up along the washer reservoir
filler neck into the engine compartment. Just rearward of the washer reservoir filler neck in the engine compartment an in-line connector joins the
hose to the engine compartment hose. The engine compartment hose is routed along the top of the left front fender wheel house to the plenum
panel. This hose passes through a grommeted hole in the plenum panel into the cowl plenum.
On the left side of the cowl plenum, an in-line connector joins the engine compartment hose to the cowl grille cover hose. The cowl grille cover
hose is routed through routing clips on the underside of the cowl grille cover to a wye fitting. The cowl grille cover 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 routed along
the underside of the cowl grille cover to the two washer nozzles.
The two windshield washer nozzles are fluidic type units. The nozzles are snapped into holes in the cowl grille cover near the base of the
windshield. The washer nozzles are not adjustable. The wye fitting contains an integral check valve. The washer nozzles, wye fitting and hose
fittings cannot be repaired and, if faulty or damaged, they must be replaced. The washer hoses for the windshield washer system are serviceable.
Pressurized washer fluid is fed through the washer system plumbing to the windshield washer nozzles by the front washer pump on the washer
reservoir. The fluidic washer nozzles help to disperse a fine and even spray over a wide area of the windshield glass. The integral wye fitting check
valve prevents the washer fluid from draining from the nozzles back to the reservoir or from leaking out of the nozzles after washer operation is
complete.
REAR WASHER NOZZLE AND PLUMBING
The rear washer system plumbing begins at the washer pump near the bottom of the washer reservoir below the left front wheel house extension
and between the left inner and outer fenders. The washer reservoir hose is routed from the washer pump up along the washer reservoir filler neck
into the engine compartment. Just rearward of the washer reservoir filler neck in the engine compartment an in-line connector joins the hose to the
engine compartment hose. The engine compartment hose is routed along the top of the left front fender wheel house to the dash panel. This hose
passes through a grommeted hole in the dash panel into the passenger compartment.
Below the instrument panel in the passenger compartment near the left cowl side inner panel, an inline connector joins the engine compartment
hose to the A-pillar hose. The A-pillar hose is routed up the left A-pillar to the headliner. At the headliner, an inline connector joins the A-pillar
hose to the headliner hose. The headliner hose is routed above the headliner and along the left roof side rail to the rear of the vehicle. At the rear of
the vehicle, the headliner hose is routed above the headliner and along the upper liftgate opening panel toward the right side of the vehicle. The
headliner hose then passes through a grommeted hole in the upper liftgate opening panel and through another grommeted hole into the upper inner
liftgate panel to the rear washer nozzle.
The rear washer nozzle is a fluidic type unit that includes an integral check valve, The nozzle has a rubber seal on the back of it and is snapped
into a hole in the liftgate outer panel above the liftgate flip-up glass. The washer nozzle is not adjustable. The washer nozzles and hose fittings
cannot be repaired and, if faulty or damaged, they must be replaced. The headliner washer hose is integral to the headliner unit and, if faulty or
damaged, the headliner unit must be replaced. The remaining hoses for the rear washer system are serviceable.
Pressurized washer fluid is fed through the washer system plumbing to the rear washer nozzle by the rear washer pump on the washer reservoir.
The fluidic rear nozzle helps to disperse a fine and even spray over a wide area of the rear glass. The integral rear washer nozzle check valve
prevents the washer fluid from draining from the nozzle back to the reservoir or from leaking out of the nozzle after washer operation is complete.
