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TRANSMISSION
DESCRIPTION
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . 72
DESCRIPTION . . . . . . . . . . . . . . . . . . . . . . . . 72
OPERATION
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REMOVAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
DISASSEMBLY - 5.9L ONLY
ASSEMBLY - 5.9L ONLY
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TRANS COOLER
DESCRIPTION
DESCRIPTION
An air-to-oil transmission oil cooler is standard on
all engine packages. The transmission oil cooler is
mounted to the front of the radiator above the power
steering cooler (Fig. 1).
DESCRIPTION
An air-to-oil transmission oil cooler is standard on
all engine packages. The transmission oil cooler is
mounted to the front of the radiator above the power
steering cooler (Fig. 2).
OPERATION
Transmission oil is routed through the cooler
where heat is removed from the transmission oil
before
returning
to
equipped with the 5.9L engine have an internal ther-
mostat that controls fluid flow through the cooler-
.When the transmission fluid is cold ( less than
operating temperature) the fluid is routed through
the cooler bypass. when the transmission fluid
reaches operating temperatures and above, the ther-
mostat closes off the bypass allowing fluid flow
through the cooler. The thermostat is serviceable.
NOTE: Vehicles with the 3.7L/4.7L engines are not
equipped with the oil cooler thermostat.
REMOVAL
(1) Disconnect the battery negative cable.
(2) Place a drain pan under the oil cooler lines.
TRANSMISSION
TABLE OF CONTENTS
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the
transmission.
Vehicles
page
TRANS COOLER - 5.9L DIESEL
DESCRIPTION
REMOVAL
INSTALLATION
Fig. 1 Cooling Module - 5.9L Gas
1 - TRANS OIL COOLER BYPASS (5.9L only)
2 - OIL COOLER THERMOSTATIC BYPASS VALVE (5.9L only)
3 -TRANS OIL COOLER
4 - OIL COOLER MOUNTING BOLT (4)
5 - POWER STEERING COOLER
6 - POWER STEERING COOLER MOUNTING BOLT(2)
7 - TRANS OIL COOLER OUTLET
8 - TRANS OIL COOLER INLET
9 - COOLER LINE CLIP
10 - COOLER LINE CLIP
11 - RADIATOR
(3) Disconnect the transmission oil cooler line
quick-connect fitting at the cooler outlet using the
quick connect release tool 6935. Plug the cooler lines
to prevent oil leakage.
(4) Unsnap the transmission cooler tubes from the
radiator tank clips.
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DR
page
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