2007 JEEP GRAND CHEROKEE engine

WARNING!
Never pour fuel or other flammable liquids into the
throttle body air inlet opening in an attempt to start
the vehicle. This could result in a flash fire causing
serious personal injury.
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 Section 6 of this manual for 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
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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 ªNormal Startingº or ªExtreme Cold
Weatherº procedures should be repeated.
After Starting
The idle speed will automatically decrease as the engine
warms up.
CAUTION!
Long periods of engine idling, especially at high
engine speeds can cause excessive exhaust tempera-
tures which can damage your vehicle. Do not leave
your vehicle unattended with the engine running.
WARNING!
Do not leave children or animals inside parked
vehicles in hot weather. Interior heat build up may
cause serious injury or death.
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AUTOMATIC TRANSMISSION
CAUTION!
Damage to the transmission may occur if the follow-
ing precautions are not observed:
²Shift into P (Park) only after the vehicle has come
to a complete stop.
²Shift into or out of R (Reverse) only after the
vehicle has come to a complete stop and the
engine is at idle speed.
²Do not shift from R (Reverse), P (Park), or N
(Neutral) into any forward gear when the engine
is above idle speed.
²Before shifting into any gear, make sure your foot
is firmly on the brake pedal.
WARNING!
It is dangerous to shift the selector lever out of P
(Park) or N (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 foot is firmly on the brake pedal.
Brake/Transmission Interlock System
This system prevents you from moving the gear shift out
of P (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 P
(Park).
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5±Speed Automatic Transmission
The electronically controlled transmission provides a
precise shift schedule. The transmission electronics are
self-calibrating; therefore, the first few shifts on a new
vehicle, may be somewhat abrupt. This is a normal
condition, and precision shifts will develop within a few
hundred miles.WARNING!
It is dangerous to shift the selector lever out of P
(Park) or N (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 foot is firmly on the brake pedal.
Gear Ranges
NOTE:After selecting any gear range, wait a moment to
allow the selected gear to engage before accelerating.
This is especially important when the engine is cold. If
there is a need to restart the engine be sure to cycle the
key to the LOCK position before restarting. Transmission
gear engagement may be delayed after restarting the
engine if the key is not cycled to the LOCK position first.
Automatic Shift Controls
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P (Park)
Supplements the parking brake by locking the transmis-
sion. The engine can be started in this range. Never use P
(Park) while the vehicle is in motion. Apply the parking
brake when leaving the vehicle in this range.
WARNING!
Unintended movement of a vehicle could injure
those in and near the vehicle. As with all vehicles,
you should never exit a vehicle while the engine is
running. Before exiting a vehicle, you should apply
the park brake, shift the transmission into P (Park),
and remove the key from the ignition. Once the key
is removed from the ignition the transmission shift
lever is locked in the P (Park) position, securing the
vehicle against unwanted movement. Furthermore,
you should never leave children unattended inside a
vehicle.
R (Reverse)
Shift into this range only after the vehicle has come to a
complete stop.
N (Neutral)
No power is transmitted from the engine to the drive
axle. When the brakes are released, the vehicle can roll
freely. Do not engage in N (Neutral) position while
driving except to coast when the vehicle is in danger of
skidding (e.g., on icy roads).
D (Drive)
The transmission automatically upshifts through fifth
gear. The D (Drive) position provides optimum driving
characteristics under all normal operating conditions. For
additional shifting information, refer to ªAutostickº later
in this section.
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Rocking the Vehicle
If the vehicle becomes stuck in snow, sand, or mud, it can
often be moved by a rocking motion. Move the gear
selector rhythmically between D (Drive) and R (Reverse),
while applying slight pressure to the accelerator.
NOTE:The Electronic Stability Program (ESP) and
Traction Control (if equipped) should be turned OFF
before attempting to rock the vehicle. Refer to ªElectronic
Brake Control Systemº in Section 3 of this manual.
The least amount of accelerator pedal pressure to main-
tain the rocking motion without spinning the wheels or
racing the engine is most effective. Racing the engine or
spinning the wheels, due to the frustration of not freeing
the vehicle, may lead to transmission overheating and
failure. Allow the engine to idle with the transmission
selector in N (Neutral) for at least one minute after everyfive rocking-motion cycles. This will minimize overheat-
ing and reduce the risk of transmission failure during
prolonged efforts to free a stuck vehicle.
CAUTION!
When ªrockingº a stuck vehicle by moving between
ªFirstº and R (Reverse), do not spin the wheels faster
than 15 mph (24 km/h), or drivetrain damage may
result.
AUTOSTICK
Autostick is a driver-interactive transmission that offers
manual gear shifting capability to provide the driver
with more control. Autostick allows the driver to increase
engine braking ability, control upshift and downshift
points, and enhance the driving experience. This system
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can also provide the driver with more control during
passing, city driving, mountain driving, trailer towing,
and many other situations.
Autostick Operation
By placing the shift lever in the D (Drive) position the
lever can be moved from side to side. This allows the
driver to engage the AutoStick mode. Moving the shift
lever to the right (+) or the left (-) will engage the
Autostick mode. In normal driving mode (Boxed ªDº
displayed in the PRNDL), moving the shift lever to the
right (+) will engage the Autostick mode putting the
transmission in the currently engaged gear. Moving the
shift lever to the Left (-) will engage the Autostick mode
and downshift the transmission 1 gear. For example, the
transmission is in Normal Mode and is currently operat-
ing in 3rd gear, a boxed D is displayed in the PRNDL, a
push to the right will engage the Autostick mode in 3rd
and a Boxed 3 will be displayed in the PRNDL. A push to
the left (-) will engage Autostick mode and downshift to2nd gear and a Boxed 2 will be displayed in the PRNDL.
Once Autostick mode is engaged a move to the Right (+)
or left (-) will trigger a upshift (+) or trigger a downshift
(-).
NOTE:In the Autostick mode, the transmission will
only shift up and down when Left or Right (D-/D+) is
manually selected by the driver.
The transmission will not allow a downshift if the
downshift would result in a engine overspeed condition.
The transmission will always allow a upshift from 1st to
2nd gear, however 2nd - 3rd, 3rd - 4th, and 4th ± 5th
upshifts will not be allowed if the vehicle speed is to low
to maintain operation in the selected gear. The transmis-
sion will automatically downshift as the vehicle slows to
a stop.
When in the Autostick mode, as the engine RPM nears
the engine maximum speed, an ªUPSHIFTº message will
appear in the Electronic Vehicle Information Center
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(EVIC) portion of your instrument cluster. This message
appears in order to alert the driver that the engine speed
is approaching it's maximum value and a upshift to the
next gear is required. In the event that the driver does not
upshift, the engine control system will limit the engine
speed to protect the engine. Refer to ªElectronic Vehicle
Information Centerº in Section 4 of this manual.
Shifting into or out of the Autostick mode can be done at
any time without taking your foot off the accelerator
pedal. When the driver wishes to engage Autostick,
simply move the shift lever to the Left or Right (D-/D+)
position while in D (Drive).
Hold the shift lever to the right for at least one second to
disengage Autostick. The transmission will now operate
automatically; shifting between the five available gears.Autostick General Information
²
You can start out in first or second gear. The system
will ignore attempts to upshift at too low of a vehicle
speed.
²The transmission will automatically downshift to first
gear when coming to a stop.
²Starting out in second gear is helpful in snowy or icy
conditions.
²Avoid using speed control when Autostick is engaged.
²The transmission will not automatically shift up when
maximum engine speed is reached while Autostick is
engaged.
²Transmission shifting will be more noticeable when
Autostick is engaged.
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