engine CHRYSLER ASPEN 2008 2.G Workshop Manual

STARTING PROCEDURES
Before starting your vehicle, adjust your seat, adjust both
inside and outside mirrors, and fasten your seat belts.
WARNING!
Be sure to turn off the engine and remove the key
from the ignition switch if you want to rest or sleep
in your car. Accidents can be caused by inadvertently
moving the shift lever or by pressing the accelerator
pedal. This may cause excessive heat in the exhaust
system, resulting in overheating and vehicle fire
which may cause serious or fatal injuries.
WARNING!
Do not leave children or animals inside parked
vehicles in hot weather. Interior heat build up may
cause serious injury or death.
Automatic Transmission
Start the engine with the selector lever in NEUTRAL or
PARK position. Apply the brake before shifting to any
driving range.
Normal Starting
Normal starting of either a warm or cold engine is
obtained without pumping or depressing the accelerator
pedal.
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Tip Start Feature
Your vehicle has a ªTip Startº starting system. With ªTip
Startº the driver does not need to hold the key in the
START position until the vehicle starts, but can release
the key (still in the ignition) and the vehicle will continue
through the start cycle.
²Turn the ignition key to the START position until the
start motor engages.
²Release the key (still in the ignition) and the starter
will continue through the start cycle until the vehicle
starts or for five seconds (whichever comes first).
If Engine Fails To Start
If the engine fails to start after you have followed the
normal starting procedure, it may be flooded. Push the
accelerator pedal all the way to the floor and hold it there
while cranking the engine. This should clear any excess
fuel in case the engine is flooded.
CAUTION!
To prevent damage to the starter, do not crank the
engine for more than 15 seconds at a time. Wait 10 to
15 seconds before trying again.
WARNING!
Never pour fuel or other flammable liquid into the
throttle body air inlet opening in an attempt to start
the vehicle. This could result in flash fire causing
serious personal injury.
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WARNING!
Do not attempt to push or tow your vehicle to get it
started. Vehicles equipped with an automatic trans-
mission cannot be started this way. Unburned fuel
could enter the catalytic converter and once the
engine has started, ignite and damage the converter
and vehicle. If the vehicle has a discharged battery,
booster cables may be used to obtain a start from a
booster battery or the battery in another vehicle. This
type of start can be dangerous if done improperly.
Refer to ªJump Startingº in Section 6 for the proper
jump-starting procedures and follow them carefully.If the engine has been flooded it may start to run, but not
have enough power to continue running when the key is
released. If this occurs, continue cranking with the accel-
erator pedal pushed all the way to the floor. Release the
accelerator pedal and the key once the engine is running
smoothly.
If the engine shows no sign of starting after two 15
second periods of cranking with the accelerator pedal
held to the floor, the normal starting procedure should be
repeated.
After Starting
The idle speed is automatically controlled on fuel injected
engines and will decrease as the engine warms up.
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ENGINE BLOCK HEATER ± IF EQUIPPED
The engine block heater warms the engine coolant and
permits quicker starts in cold weather. Connect the cord
to a standard 110-115 volt AC electrical outlet with a
grounded, three wire extension cord.
The 3.7L/4.7L engine block heater cord is located at the
front of the engine compartment near the radiator cap.
The 5.7L engine block heater cord is located on the left
side of the engine compartment and rearward of the
power distribution center.
WARNING!
Remember to disconnect the cord before driving.
Damage to the 110-115 volt electrical cord could cause
electrocution.
AUTOMATIC TRANSMISSION
The electronic PRNDL on the instrument cluster indicates
the transmission gear selected. The shift lever is mounted
on the right side of the steering column. To drive, move
the shift lever from PARK or NEUTRAL to the desired
drive position. Pull the shift lever toward you when
shifting into REVERSE, 2nd, 1st or PARK, or when
shifting out of PARK.
Brake/Transmission Interlock System
This system prevents you from moving the gear shift out
of PARK and into any gear unless the brake pedal is
pressed. This system is active only while the ignition
switch is in the ON position. Always depress thebrake
pedal first,before moving the gear selector out of PARK.
274 STARTING AND OPERATING

Gear Ranges
DO NOT race the engine when shifting from PARK or
NEUTRAL position into another gear range.
ªPº PARK
Supplements parking brake by locking the transmission.
Engine can be started in this range. Never use PARK
while vehicle is in motion. Apply the parking brake when
leaving the vehicle in this range. Always apply the
parking brake first, then place the shift lever in PARK
position.WARNING!
Your vehicle could move and injure you and others if
it is not completely in PARK. Check by trying to
move the gearshift lever back and forth without first
pulling the lever toward you, after you have set it in
PARK. Make sure it is in PARK before leaving the
vehicle.
WARNING!
Never use the PARK position on an automatic trans-
mission as a substitute for the parking brake. Always
apply the parking brake fully when parked to guard
against vehicle movement and possible injury or
damage.
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WARNING!
It is dangerous to shift the gear 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.
ªRº REVERSE
Use this range only after the vehicle has come to a
complete stop.ªNº 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.
NOTE:Towing the vehicle (except as specified under
Towing A Disabled Vehicle), coasting, or otherwise driv-
ing the vehicle while in NEUTRAL can cause severe
transmission damage
ªDº DRIVE
For most city and highway driving.
ª2º 2nd
For driving slowly in heavy city traffic or on mountain
roads where more precise speed control is desirable. Use
it also when climbing long grades, and for engine brak-
ing when descending moderately steep grades. To pre-
vent excessive engine speed, do not exceed 45 mph (72
km/h) in this range.
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ª1º 1st
For driving up very steep hills and for engine braking at
low speeds (25 mph {40 km/h} or less) when going
downhill. To prevent excessive engine speed do not
exceed 25 mph (40 km/h) in this range.
OVERDRIVE Operation
The OVERDRIVE automatic transmission contains an
electronically controlled fourth and fifth (if equipped)
speed (OVERDRIVE). The transmission will automati-
cally 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 TOW/HAUL switch has not been activated;
²transmission has reached normal operating tempera-
ture.
NOTE:If the vehicle is started in extremely cold tem-
peratures, the transmission may not shift into OVER-
DRIVE and will automatically select the most desirable
gear for operation at this temperature. Normal operation
will resume when the transmission fluid temperature has
risen to a suitable level. Refer also to the Note under
torque converter clutch, later in this section.
If the transmission temperature gets extremely hot, the
transmission will automatically select the most desirable
gear for operation at this temperature. If the transmission
temperature becomes hot enough, the ªTRANS TEMPº
light may illuminate and the transmission may down-
shift out of OVERDRIVE until the transmission cools
down. After cooldown, the transmission will resume
normal operation.
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The transmission will downshift from OVERDRIVE to
DRIVE if the accelerator pedal is fully depressed at
vehicle speeds above approximately 35 mph (56 km/h).
When To Use TOW/HAUL Mode
When driving in hilly areas, towing a trailer, carrying a
heavy load, etc., and frequent transmission shifting oc-
curs, press the TOW/HAUL button. This will improve
performance and reduce the potential for transmission
overheating or failure due to excessive shifting. When
operating in TOW/HAUL mode, 5th gear (if equipped) is
disabled and 2-3 and 3-4 shift patterns are modified.
Shifts into OVERDRIVE (4th gear) are allowed during
steady cruise (for improved fuel economy) and automatic
closed-throttle downshifts to 3rd gear (for improved
braking) will occur during steady braking.
The TOW/HAUL light will illuminate in the instrument
cluster to indicate when the switch has been activated.
Pressing the switch a second time restores normal opera-
tion. If the TOW/HAUL mode is desired, the button
must be pressed each time the engine is started.
TOW/HAUL Button
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Torque Converter Clutch
A feature designed to improve fuel economy is included
in all automatic transmissions. A clutch within the torque
converter engages automatically at a calibrated speed at
light throttle. It engages at higher speeds under heavier
acceleration. This may result in a slightly different feeling
or response during normal operation in high gear. When
the vehicle speed drops below a calibrated speed, or
during acceleration, the clutch automatically and
smoothly disengages. The feature is operational in
OVERDRIVE and in DRIVE.
NOTE:The torque converter clutch will not engage
until the transmission fluid and engine coolant are warm
(usually after 1-3 mi [1.6 - 4.8 km] of driving). Because the
engine speed is higher when the torque converter clutch
is not engaged, it may seem as if the transmission is not
shifting into Overdrive when cold. This is normal. Press-
ing the TOW/HAUL button, when the transmission is
sufficiently warm, will demonstrate that the transmissionis able to shift into, and out of, Overdrive. For vehicles
with 4.7L or 5.7L engines (which have two Overdrive
gears), the transmission may not shift into 5th gear until
the transmission fluid and engine coolant are warm.
NOTE:If the vehicle has not been driven in several
days, the first few seconds of operation after shifting the
transmission into gear may seem sluggish. This is due to
the fluid partially draining from the torque converter into
the transmission. This condition is normal and will not
cause damage to the transmission. The torque converter
will refill within five seconds of shifting from PARK into
any other gear position.
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FOUR-WHEEL DRIVE OPERATION
NV 140 Transfer Case Operating
Information/Precautions ± If Equipped
The NV 140 is a single speed (4 HI range only) transfer
case which provides convenient full-time 4-wheel drive.
No driver interaction is required. This transfer case
divides engine torque almost evenly with 48 percent of
engine torque to the front axle and 52 percent of engine
torque to the rear axle.
Proper operation of 4-wheel drive vehicles depends on
tires of equal size, type and circumference on each wheel.
Any difference in tire size can cause damage to the
transfer case.
Because 4-wheel drive provides improved traction, there
is a tendency to exceed safe turning and stopping speeds.
Do not go faster than road conditions permit.4WD
Normal 4-Wheel Drive High Range - Employs inter-axle
differential. Allows front and rear wheels to rotate at
different speeds. All road surfaces.
NV 244 Generation II Transfer Case Operating
Information / Precautions
The NV 244 Generation II is an electric-shift transfer case
and is operated by the 4WD Control Switch, which is
located on the instrument panel.
The NV 244 Generation II transfer case provides four
mode positions - Normal 4-wheel drive (4WD) high
range, 4-wheel-drive lock (4WD LOCK), 4-wheel drive
low (4WD LOW) range, and NEUTRAL.
This transfer case is equipped with an inter-axle differ-
ential that allows driving the vehicle in the normal
all-wheel drive position (4WD) at all times on any given
road surface, including dry, hard-surfaced roads. The
4WD mode allows the front and rear wheels to rotate at
280 STARTING AND OPERATING