Dodge ram truck 3500 1996 Service Manual page 334

7 - 50 COOLING SYSTEM
R E M O V A L mm msmLLMfmm (Continued)
(4) Install thermostat, lift bracket, seals and hous­
ing to the engine as an assembly. Install and tighten
mounting bolts to 24 N-m (18 ft. lbs.) torque.
(5) Position generator to thermostat housing.
Install and tighten mounting bolt to 24 N-m torque.
Tighten pivot bolt to 43 N-m (32 ft. lbs.) torque.
(6) Install the check valve hose and hose clamp at
thermostat housing (Fig. 76).
(7) Install accessory drive belt. Refer to Belt
Removal/Installation in the Engine Accessory Drive
Belt section of this group.
(8) Connect negative battery cables to both batter­
ies.
(9) Fill cooling system and check for leaks. Refer
to Refilling Cooling System in this group.
REPLACING WATER-TO-OIL COOLER IN RADIATOR
SIDE TANK
The internal transmission oil cooler located within
the radiator is not serviceable. I f it requires service,
the radiator must be replaced.
Once the repaired or replacement radiator has
been installed, fill the cooling system and inspect for
leaks. Refer to the Refilling Cooling System and Test­
ing Cooling System For Leaks sections in this group.
I f the transmission operates properly after repairing
the leak, drain the transmission and remove the
transmission oil pan. Inspect for sludge and/or rust.
Inspect for a dirty or plugged inlet filter. I f none of
these conditions are found, the transmission and
torque convertor may not require reconditioning.
Refer to Group 21 for automatic transmission servic­
ing.
AifFTO-OlL COOLER—3 J L / I . 2 L / 1 J L ENGINES.,
REMOVAL
CAUTION: If a leak should occur in the internal
radiator mounted transmission air-to-oil cooler (gas
engines only), engine coolant may become mixed
with transmission fluid. Transmission fluid may also
enter engine cooling system. Both cooling system
and transmission should be drained and inspected
in case of oil cooler leakage.
(1) Disconnect negative battery cable at battery.
(2) Drain cooling system. Refer to Draining Cool­
ing System.
(3) Place a drain pan under the oil cooler lines.
(4) Disconnect the two transmission oil cooler line
quick-connect fittings at the radiator. Refer to Group
21, Transmissions for procedures. Plug cooler lines to
prevent oil leakage.
(5) Disconnect the oil cooler quick-connect fitting
at the transmission oil cooler line. Refer to Group 21,
Transmissions for procedures.
(6) Disconnect the windshield washer reservoir
tank at the fan shroud. Refer to Group 8K, Wind­
shield Wiper and Washer Systems for procedures.
(7) Remove the rubber shield at right side of radi­
ator. The shield is held to vehicle body with plastic
clips.
(8) Remove the two radiator upper mounting bolts
(Fig. 79).
M O U N T I N G
BOLTS
ALIGNMENT
DOWELS (2) J9407-38
Fig. 79 Radiator Mounting Bolts—Typical
(9) Position the upper part of radiator towards
engine.
(10) Remove the oil cooler lower mounting bolt (oil
cooler-to- vehicle body) (Fig. 80).
(11) Remove three bolts (radiator support bracket-
to-body). Remove this A-shaped support bracket and
the transmission oil cooler as an assembly from the
vehicle. Take care not to damage the radiator core or
A/C condenser fins with the cooling lines when
removing.
(12) Remove oil cooler from A-shaped support
bracket by removing two upper mounting strap bolts
and mounting straps at support bracket (Fig. 80).
(13) Remove oil cooler from the A-shaped radiator
support bracket.
INSTALLATION
(1) Install the oil cooler assembly to the A-shaped
radiator support bracket using the two upper mount­
ing bolts and mounting straps. Install the bolts but
do not tighten at this time.
(2) Install the radiator support bracket and oil
cooler (as an assembly) to the vehicle.
(3) Install the two lower radiator A-shaped support
bracket bolts. Do not tighten bolts at this time.