Chrysler RAM TRUCK 2500 1994 Service Manual page 304

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COOLING SYSTEM 7 - 49
REMOVAL—AIR-TO-OIL COOLER—8.0L V-10 ENGINE
I f a leak should occur i n the internal radiator
mounted transmission oil cooler (gas engines only),
engine coolant may become mixed with transmission
fluid. Transmission fluid may also enter engine cool­
ing system. Both cooling system and transmission
should be drained and inspected i n case of oil cooler
leakage.
(1) Place a drain pan under the oil cooler lines.
(2) Disconnect the two transmission oil cooler line
quick-connect fittings from the transmission oil
cooler lines (Fig. 2). Refer to Group 21, Transmis­
sions for procedures. Plug cooler lines to prevent oil
leakage.
(3) Remove three oil cooler-to-radiator support
mounting bolts (Fig. 2).
(4) Remove the oil cooler and line assembly from
the vehicle.
INSTALLATION
(1) Install the oil cooler and cooler line assembly to
the vehicle.
(2) Install three mounting bolts and tighten to 6
N-m (50 i n . lbs.) torque.
(3) Connect the quick-connect fittings. Refer to
Group 21, Transmissions for procedures.
(4) Start the engine and check all fittings for leaks.
(5) Check the fluid level i n the automatic trans­
mission. Refer to Group 21, Transmissions for proce­
dures.
AUTOMATIC TRANSMISSION OIL COOLERS-
DIESEL ENGINE
All diesel models equipped with an automatic
transmission are equipped with both a main water-
to-oil cooler and a separate air-to-oil cooler. Both cool­
ers are supplied as standard equipment on diesel
engine powered models when equipped with an auto­
matic transmission.
Transmission oil is cooled when i t passes through
these coolers.
The main water-to-oil transmission oil cooler is
mounted to a bracket on the turbocharger side of the
engine (Fig. 4).
The air-to-oil cooler is located i n front of and to the
left side of the radiator (Fig. 5).
The diesel engine is not equipped with an internal
radiator mounted oil cooler.
REMOVAL—VKATER-TO-OIL
COOLER—5.9L
DIESEL ENGINE
I f a leak should occur i n the water-to-oil cooler
mounted to the side of the engine block, engine cool­
ant may become mixed with transmission fluid.
Transmission fluid may also enter engine cooling sys­
tem. Both cooling system and transmission should be
drained and inspected i n case of oil cooler leakage.
QUICK-
M O U N T I N G C O N N E C T
NUTS (2) FITTINGS (2) J9407-42
Fig. 5 Air-To-Oil Cooler—Diesel Engine
(1) Disconnect both negative battery cables at bat­
teries.
(2) Remove air cleaner assembly and air cleaner
intake hoses. Refer to Group 25, Emission Control
System for procedures.
(3) Drain cooling system. Refer to Draining Cooling
System.
(4) Disconnect coolant lines from cooler.
(5) Disconnect transmission oil lines from cooler.
Plug cooler lines to prevent oil leakage.
(6) Remove oil cooler mounting straps.
(7) Lift oil cooler off of mounting bracket.
INSTALLATION
(1) Position oil cooler on bracket.
(2) Install mounting straps.