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11:47:40 - 04/19/2024
V6 Dakotas
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Brodie
Dodge Dakota
JOIN HERE
3/17/2006
12:03:30
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 Subject: Check Valve on the Windshield Washer?
IP: Logged
Message:
So my windshield washer quits working. When I try to run it, I hear the motor hum, but nothing comes out the sprayers. I take it in to a local mechanic and he says it has something to do with a "check valve" and I need to take it to a Dodge dealer for repair.
I'm not too crazy about paying dealership service department prices, has anyone had this problem before? If so? Is it cheap/easy to fix yourself or am I doomed to taking it in to the dealer?
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daddio
Dodge Dakota
JOIN HERE
3/17/2006
12:18:40
|  RE: Check Valve on the Windshield Washer?
IP: Logged
Message:
from a 2001 FSM
CHECK VALVE
DESCRIPTION
A washer system check valve is standard equipment
on this model. The check valve is integral to
the washer nozzle plumbing wye fitting located in
the cowl plenum beneath the cowl plenum cover/
grille panel near the base of the windshield. The
check valve consists of a molded plastic body with a
round center section. Three barbed hose nipples are
formed in a wye configuration on the outside circumference
of the center section of the valve body. Within
the check valve body, a small check valve operated by
a small coiled spring restricts flow through the unit
until the valve is unseated by a predetermined inlet
fluid pressure. The check valve cannot be adjusted or
repaired and, if faulty or damaged, it must be
replaced.
OPERATION
The check valve provides more than one function
in this application. It serves as a wye connector fitting
between the cowl grille panel and washer nozzle
sections of the washer supply hose. It also prevents
washer fluid from draining out of the washer supply
hoses back to the washer reservoir. This drain-back
would result in a lengthy delay from when the
washer switch is actuated until washer fluid was dispensed
through the washer nozzles, because the
washer pump would have to refill the washer plumbing
from the reservoir to the nozzles. Finally, the
check valve prevents washer fluid from siphoning
through the washer nozzles after the washer system
is turned Off. When the washer pump pressurizes
and pumps washer fluid from the reservoir through
the washer plumbing, the fluid pressure overrides
the spring pressure applied to the check valve and
unseats the valve, allowing washer fluid to flow
toward the washer nozzles. When the washer pump
stops operating, spring pressure seats the check
valve and fluid flow in either direction within the
washer plumbing is prevented.
REMOVAL
(1) Remove the wiper arms from the wiper pivots.
(Refer to 8 - ELECTRICAL/WIPERS/WASHERS/
WIPER ARMS - REMOVAL).
(2) Open the hood and pull the hood to plenum
seal off of the forward flanges of the cowl grille cover
and the plenum panel.
(3) Remove the cowl plenum cover/grille panel
from the top of the cowl plenum. (Refer to 23 -
BODY/EXTERIOR/COWL GRILLE - REMOVAL).
(4) From the underside of the cowl plenum cover/
grille panel, disconnect the washer hoses from the
three barbed nipples of the wye fitting/check valve
unit.
(5) Remove the wye fitting/check valve unit from
the underside of the cowl plenum cover/grille panel.
INSTALLATION
(1) Position the wye fitting/check valve unit to the
underside of the cowl plenum cover/grille panel.
(2) From the underside of the cowl plenum cover/
grille panel, reconnect the three washer hoses to the
barbed nipples of the wye fitting/check valve unit.
(3) Reinstall the washer hoses for the washer nozzles
into their locating clips on the underside of the
cowl plenum cover/grille panel.
(4) Reinstall the cowl plenum cover/grille panel
onto the top of the cowl plenum panel. (Refer to 23 -
BODY/EXTERIOR/COWL GRILLE - INSTALLATION).
(5) Reinstall the wiper arms onto the wiper pivots.
(Refer to 8 - ELECTRICAL/WIPERS/WASHERS/
WIPER ARMS - INSTALLATION).
|
Scott C
Dodge Dakota
JOIN HERE
3/18/2006
16:54:21
| RE: Check Valve on the Windshield Washer?
IP: Logged
Message:
damn you still got fingers after typing that book.. lol
Scott C.
Royal Auto
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daddio
Dodge Dakota
JOIN HERE
3/20/2006
09:00:16
| RE: Check Valve on the Windshield Washer?
IP: Logged
Message:
Scott C, it's called copy & paste!
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