Dodge RAM TRUCK 1500 1995 Service Manual page 1212

14 - 130 COMPONENT REMOVAL/INSTALLATION—DIESEL ENGINE
B R
(4) Remove (unscrew) the filter/separator and WIF
sensor as one assembly from the filter housing (Fig.
12).
(5) Remove the o-ring seal from the filter housing
(Fig. 13).
O-RING FILTER
Fig. 13 Fuel Filter/Water Separator O-ring
(6) Drain the filter/separator.
(7) Remove the WIF sensor, o-ring and drain valve
assembly from the filter/separator (Fig. 14).
(8) Inspect the WIF sensor probes. Clean contami­
nants from sensor probes if necessary. Replace sensor
if probes will not clean up.
i : FUEL FILTER/
WATER SEPARATOR
DRAIN
VALVE
J9414-90
Fig. 14 WIF Sensor and Drain Valve Assembly
INSTALLATION
(1) Install a new o-ring seal on WIF sensor.
(2) Install WIF sensor/drain valve assembly into
new filter/separator.
If the new fuel filter/water separator is not
filled with clean fuel before it is installed, man­
ual air bleeding of the fuel system may be nec­
essary (temporary rough engine running may
occur). If necessary, refer to the Air 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. 13).
(6) Install filter/separator to housing. Tighten fil­
ter/separator one-half turn after it makes contact
with the housing. Tighten by hand only.
(7) Connect electrical connector to WIF sensor.
(8) Connect drain hose to drain valve.
FUEL GAUGE SENDING UNIT
Refer to the Fuel Delivery—Diesel Engine section
of this group for procedures.
FUEL HEATER
The fuel heater element assembly is located inside
of the fuel heater housing and above the pre-filter '
(Fig. 15). The fuel temperature sensor is located at
the top of the fuel heater housing (Fig. 15).
FUEL TEMPERATURE SENSOR
Fig. 15 Fuel Heater and Temperature Sensor
Location
REMOVAL
(1) Disconnect both negative battery cables at both
batteries.
(2) Remove starter motor. Refer to Group 8B for
procedures.
(3) Disconnect the electrical connector at the front
of fuel heater housing (Fig. 15).
(4) Place a drain pan below the fuel heater.
(5) A machined hex is located on the bottom of the
pre-filter housing (Fig. 16). From under the vehicle,
attach a socket to this hex and remove (unscrew) the
pre-filter.
(6) Remove the fuel heater assembly from housing.