Commander 4WD V8-4.7L VIN N (2006)
Windshield Washer Reservoir: Description and Operation
WASHER RESERVOIR
DESCRIPTION
A single washer fluid reservoir (1) is used for both the front and rear washer systems. The molded plastic washer fluid reservoir is mounted on the
outboard side of the left front frame rail in front of the left front wheel, where it is concealed by the left front wheel house splash shield. The only visible
component of the washer reservoir is the filler neck and cap unit, which extends upward into the engine compartment forward of the radiator
crossmember. A bright yellow plastic filler cap with a rubber seal and an International Control and Display Symbol icon for Windshield Washer and the
text Washer Fluid Only molded into it snaps over the open end of the filler neck. The cap hinges on and is secured to a molded-in hook formation on the
rear of the reservoir filler neck.
There are separate, dedicated holes on the outboard side of the reservoir provided for the washer pump/motor unit (2) and the washer fluid level switch
(3). The inboard side of the washer reservoir has two integral mounting flanges that are secured to the outside of the left front frame rail by two screws.
A blind rivet secures an integral mounting on the reservoir filler neck to the left side of the upper radiator crossmember near the front of the engine
compartment. The left front fender wheel house splash shield must be removed to access the washer reservoir for service.
The washer reservoir cannot be repaired and, if ineffective or damaged, it must be replaced. The washer reservoir, rubber grommet seals for the washer
pump/motor unit and the washer fluid level switch, and the filler cap are each available for individual service replacement.
OPERATION
The washer fluid reservoir provides a secure, on-vehicle storage location for a large reserve of washer fluid for operation of the front and rear washer
systems. The washer reservoir filler neck provides a clearly marked and readily accessible point from which to add washer fluid to the reservoir. The
washer pump/motor unit is located in a sump area near the outboard side of the reservoir to be certain that washer fluid will be available to the pump as
the fluid level in the reservoir becomes depleted. The washer pump/motor unit is mounted in the lowest position in the sump. The washer fluid level
switch is mounted just above the sump area of the reservoir so that there will be adequate warning to the vehicle operator that the washer fluid level is
low, before the washer system will no longer operate.
