Dodge ram truck 3500 1996 Service Manual page 1331

B R FUEL SYSTEM 14 - 97
R E M O V A L AND INSTALLATION (Continued)
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. 77).
(4) Place a drain pan below the fuel heater.
(5) A machined hex is located on the bottom of the pre-
filter housing (Fig. 78), From under the vehicle, attach a
socket to this hex and remove (unscrew) the pre-filter.
(6) Remove the fuel heater assembly from housing.
Fig. 78 Fuel Heater and Pre-Filter
INSTALLATION
Reverse the removal procedure for heater element
installation.
FUEL HEATER RELAY
The fuel heater relay is located in the engine com­
partment near the brake master cylinder (Fig. 79).
REMOVAL
(1) Disconnect both negative battery cables at both
batteries.
(2) Disconnect the electrical connector at the relay.
(3) Remove the relay from the mounting bracket.
INSTALLATION
(1) Install the relay to the mounting bracket.
(2) Connect the electrical connector.
(3) Connect battery cables to both batteries.
FUEL INJECTION P U I P
REMOVAL
(1) Disconnect both negative battery cables at both
batteries.
(2) Disconnect electrical connector at throttle posi­
tion sensor on side of injection pump (if equipped
with automatic transmission) (Fig. 80).
FUEL SHUT-OFF
FUEL HEATER S O L E N O I D RELAY
Fig. 79 Fuel Heater Relay—Diesel
CENTER TERMINAL
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Fig. 80 Throttle Position Sensor—Diesel
(3) Disconnect the electrical connector at fuel shut­
down solenoid. (Fig. 81).
(4) Disconnect the main engine wiring harness at
top of injection pump and position to the side.
(5) Remove the metal intake manifold-to-inter-
cooler connecting tube.
(6) Remove the engine oil dipstick tube mounting clamp
and bolt (Fig. 82). Position dipstick tube to the side.
(7) Disconnect the two air heater cable nuts (Fig. 82).