Wrangler 2WD V6-3.8L (2008)
Check Valve: Description and Operation
Description
Front
FRONT
The front check valve (2) is standard equipment on this vehicle, and is located in the engine compartment in the washer supply hose on the underside of
the hood panel just outboard of the front washer nozzle. The check valve consists of a molded plastic valve body with a raised arrowhead (4) molded
into its center section indicating the direction of the flow through the valve. A barbed hose nipple (1 and 3) is formed on each side of the raised center
section of the valve body. Within the check valve body, a small diaphragm is held against the lip of an integral sump well by a small plastic piston and a
coiled spring.
The front check valve cannot be adjusted or repaired and, if ineffective or damaged, it must be replaced.
Rear
REAR
The rear check valve (2) is located in the hardtop disconnect plate (1) located in the left inner D-pillar (3) of the removable hardtop. The disconnect plate
provides a washer plumbing interconnect between the rear washer hose (4) contained within the body wire harness and the hardtop washer hose
connected to the rear wiper motor. The disconnect plate also provides an electrical interconnect between the body wire harness and the hardtop wiring
connected to the rear wiper motor.
The check valve consists of a molded white plastic valve body with a raised center flange and two raised wedge locks that secure the unit in the
disconnect plate. A barbed outlet hose nipple is formed on the side of the valve body oriented toward the rear washer nozzle, and a straight inlet hose
nipple is formed on the side of the valve body oriented toward the washer pump. Within the check valve body, a small check ball is held against an
integral valve seat by a small coiled spring.
The rear check valve cannot be adjusted or repaired and, if ineffective or damaged, it must be replaced.
