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CAUTION!
If WATER IN FUEL indicator light remains on DO
NOT START engine before you drain water from the
fuel filter to avoid engine damage. Refer to ªDrain-
ing Fuel/Water Separator Filter (6.7L Diesel Engine)º
under ªMaintenance Proceduresº in Section 7.
4. Turn the ignition key to START and crank the engine.
Do not press the accelerator during starting.
CAUTION!
Do not crank engine for more than 15 seconds at a
time as starter motor damage may result. Turn key to
OFF and wait at least two minutes before trying
again.5. When the engine starts, release the key.
6. Check to see that there is oil pressure.
7. Release the parking brake.
Starting Procedure ± Engine Manifold Air
Temperature Below 66ÉF (19ÉC)
NOTE:The temperature displayed on the overhead
console (if equipped) does not necessarily reflect the
engine manifold air temperature. When certain engine
temperatures fall below 66ÉF (19ÉC) the lights will remain
on indicating the intake manifold heater system is active.
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Follow the steps in the Normal Starting Procedure ex-
cept:
CAUTION!
Do not crank engine for more than 15 seconds at a
time or starter motor damage may result. Turn key to
OFF and wait at least two minutes for starter to cool
before repeating start procedure.
²The WAIT TO START light will remain on for a period
of time (length of time depends on engine tempera-
ture).
²After the WAIT TO START light goes off, turn the
ignition key to START. Do not press the accelerator
during starting.
²After engine start-up, check to see that there is oil
pressure.
²Allow the engine to idle about three minutes until
the manifold heaters have completed the post-heat
cycle.
²Release the parking brake and drive.
NOTE:Engine idle speed will automatically increase to
1000 RPM at low coolant temperatures to improve engine
warm-up.
NOTE:If the engine stalls or if the ignition switch is left
ON for more than two minutes after the WAIT TO START
light goes out, reset the grid heaters by turning the
ignition switch to OFF for at least five seconds and then
back ON. Repeat steps 3 through 7 of the normal starting
procedure.
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Page 287 of 527

TRANSMISSION SHIFTING
Automatic Transmission with Overdrive
(68RFE) Ð If Equipped
The gear selector lever display located in the instrument
panel cluster indicates the transmission gear range (the
selector is illuminated for night driving). The selector
lever is mounted on the right side of the steering column.
You must depress the brake pedal to pull the selector
lever out of PARK position (Brake Interlock System). To
drive, move the selector lever from PARK or NEUTRAL
to the desired DRIVE position. Pull the selector lever
toward you when shifting into REVERSE, SECOND,
FIRST or PARK, or when shifting out of PARK.
Gear Ranges
DO NOT race the engine when shifting from PARK or
NEUTRAL position into another gear range.PARK
This gear position supplements the parking brake by
locking the transmission. The engine can be started in
this range. Never use PARK while the vehicle is in
motion. Apply the parking brake when leaving the
vehicle in this range. Always apply parking brake first,
then place the selector in PARK position. On 4-wheel
drive vehicles be sure that the transfer case is in a drive
position!
WARNING!
Never use PARK position on an automatic transmis-
sion as a substitute for the parking brake. Always
apply parking brake fully when parked to guard
against vehicle movement and possible injury or
damage.
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WARNING!
Your vehicle could move and injure you and others if
it is not completely in PARK. Check by trying to
move the shift lever back and forth without first
pulling it toward you after you have set it in PARK.
Make sure it is in PARK before leaving the vehicle.
WARNING!
It is dangerous to shift the shift lever out of PARK or
NEUTRAL if the engine speed is higher than idle
speed. If your foot is not firmly on the brake pedal,
the vehicle could accelerate quickly forward or in
reverse. You could lose control of the vehicle and hit
someone or something. Only shift into gear when the
engine is idling normally and when your right foot is
firmly on the brake pedal.REVERSE
Use this range only after the vehicle has come to a
complete stop.
NEUTRAL
Shift to NEUTRAL when the vehicle is standing for
prolonged periods with the engine running. The engine
may be started in this range. Set the parking brake if you
must leave the vehicle.
DRIVE
Drive range provides underdrive 1st, 2nd and 3rd gears,
direct 4th gear and overdrive 5th and 6th gears. The shift
into overdrive 5th and 6th gear occurs only after the
transmission has completed the shift into 4th gear. No
other movement of the shift mechanism is required to
complete the 4±5 or 5±6 gear shifts.
The 4th and 5th gear upshifts occurs automatically unless
the Tow/Haul mode is enabled.
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Upshifts into both overdrive gears, 5th and 6th, will be
delayed when the transmission fluid temperature is
below 40É F (4.5É C) or above 240É F (115.5É C).
NOTE:Use caution when operating a heavily loaded
vehicle in 2nd or 1st gear in high ambients as torque
converter slip can impose significant additional heat load
on the cooling system.
WARNING!
Never use Park position on an automatic transmis-
sion as a substitute for the parking brake. Always
apply parking brake fully when parked to guard
against vehicle movement and possible injury or
damage.
Overdrive Operation
The overdrive automatic transmission contains an elec-
tronically controlled 5th and 6th (Overdrive). The trans-
mission will automatically shift from Drive to Overdrive
if the following conditions are present:
²the transmission selector is in DRIVE;
²the engine coolant has reached normal operating tem-
perature;
²vehicle speed is above approximately 30 mph (48
km/h);
²the ªTOW HAUL O/D OFFº switch has not been
activated;
²transmission has reached normal operating tempera-
ture.
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MANUAL TRANSMISSION
WARNING!
You or others could be injured if you leave the
vehicle unattended without having the parking
brake fully applied. The parking brake should al-
ways be applied when the driver is not in the vehicle,
especially on an incline.
CAUTION!
Never drive with your foot resting on the clutch
pedal, or attempt to hold the vehicle on a hill with the
clutch pedal partially engaged, as this will cause
abnormal wear on the clutch.NOTE:During cold weather, you may experience in-
creased effort in shifting until the transmission fluid
warms up. This is normal.
Shifting
Shift Pattern
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NOTE:Delayed shifts out of four-wheel drive may be
experienced due to uneven tire wear, low or uneven tire
pressures, excessive vehicle loading, or cold tempera-
tures.
WARNING!
You or others could be injured if you leave the
vehicle unattended with the transfer case in the
NEUTRAL position without first fully engaging the
parking brake. The transfer case NEUTRAL position
disengages both the front and rear driveshafts from
the powertrain and will allow the vehicle to move
regardless of the transmission position. The parking
brake should always be applied when the driver is
not in the vehicle.For additional information on the appropriate use of each
transfer case mode position see the information below:
2H
Rear Wheel Drive High Range - Normal street and
highway driving. Dry hard surfaced roads.
4H
4-Wheel Drive High Range - Locks the front and rear
driveshafts together. Forces the front and rear wheels to
rotate at the same speed. Additional traction for loose,
slippery road surfaces only.
N
NEUTRAL - Disengages both the front and rear drive-
shafts from the powertrain. To be used for flat towing
behind another vehicle. See Recreational Towing for
more information.
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If One or More Shift Conditions Are Not Met:
1. The indicator light for the current position will remain
ON.
2. The newly selected position indicator light will con-
tinue to flash.
3. The transfer casewill notshift.
NOTE:Before retrying a selection, make certain that all
the necessary requirements for selecting a new transfer
case position have been met. To retry the selection, turn
the control knob back to the current position, wait five
seconds, and retry selection. To find the shift require-
ments, refer to the9Shifting Procedure9for your transfer
case, located in this section.
The ªSERVICE 4WDº warning light monitors the electric
shift 4WD system. If this light remains on after enginestart up or illuminates during driving, it means that the
4WD system is not functioning properly and that service
is required.
WARNING!
Always engage the parking brake when powering
down the vehicle if the(SERVICE 4WD(light is
illuminated. Not engaging the parking brake may
allow the vehicle to roll, which may cause personal
injury.
NOTE:Do not attempt to make a shift while only the
front or rear wheels are spinning, as this can cause
damage to driveline components.
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