Dodge ram truck 3500 1996 Service Manual page 1329

B R
FUEL SYSTEM 14 • 95
Fig. 71 Drain Valve at Fuel Filter/Water Separator
(3) Disconnect the electrical connector from the
WIF sensor at the bottom of the filter (Fig. 72).
Fig. 72 Electrical Connector—WIF Sensor
(4) Remove (unscrew) the filter/separator and WIF
sensor as one assembly from the filter housing (Fig.
72).
(5) Remove the o-ring seal from the filter housing
(Fig. 73).
(6) Drain the filter/separator.
(7) Remove the WIF sensor, o-ring and drain valve
assembly from the filter/separator (Fig. 74).
(8) Inspect the WIF sensor probes. Clean contami­
nants from sensor probes if necessary. Replace sensor
if probes will not clean up.
INSTALLATION
(1) Install a new o-ring seal on WIF sensor.
(2) Install WIF sensor/drain valve assembly into
new filter/separator.
I f the new fuel filter/water separator is not
filled w i t h clean fuel before i t is installed, man­
u a l a i r bleeding of the fuel system may be nec-
Fig. 73 Fuel Filter/Water Separator O-ring
FUEL FILTER/
DRAIN
VALVE
J9414-90
Fig. 74 WIF Sensor a n d Drain Vaive Assembly
essary (temporary rough engine r u n n i n g may
occur), i f necessary, refer to the A i r Bleed Pro­
cedure i n this section of the group for proce­
dures.
(3) Fill filter/separator with clean fuel.
(4) Apply a light film of clean unused engine oil to
the filter/separator seal.
( 5 ) Install a new o-ring seal to the filter/separator
housing (Fig. 73).
(6) Install filter/separator to housing. Tighten fil­
ter/separator one-half turn after i t makes contact
with the housing. Tighten by hand only.
(7) Connect electrical connector to WIF sensor.
(8) Connect drain hose to drain valve.
FUEL TANK
Refer to Fuel Tank—All Engines in the Fuel Deliv­
ery System—Gasoline engines section for procedures.