Grand Cherokee 4WD V8-4.7L (2003)
Windshield Washer Spray Nozzle: Description and Operation
Front
FRONT WASHER NOZZLE
The two front washer nozzles have integral snap features that secure them in dedicated holes in the cowl plenum cover/grille panel located near the
base of the windshield. The domed upper surface of the washer nozzle is visible on the top of the plenum cover/grille panel, and the nozzle orifice is
oriented towards the windshield glass. The washer plumbing fittings for the washer nozzles are concealed beneath the cowl plenum cover/grille panel.
These fluidic washer nozzles are constructed of molded plastic. The cowl plenum cover/grille panel must be removed from the vehicle to access the
nozzles for service. The washer nozzles cannot be adjusted or repaired. If faulty or damaged, they must be replaced.
The two front washer nozzles are designed to dispense washer fluid into the wiper pattern area on the outside of the windshield glass. Pressurized
washer fluid is fed to each nozzle from the washer reservoir by the front washer pump/motor through a single hose, which is attached to a barbed
nipple on each front washer nozzle below the cowl plenum cover/ grille panel. A fluidic matrix within the washer nozzle causes the pressurized washer
fluid to be emitted from the nozzle orifice as an oscillating stream to more effectively cover a larger area of the glass to be cleaned.
