JEEP WRANGLER 2011 JK / 3.G Repair Manual

WARNING!
You or others can be badly burned by hot engine coolant (antifreeze) or steam
from your radiator. If you see or hear steam coming from under the hood, do not
open the hood until the radiator has had time to cool. Never try to open a cooling
system pressure cap when the radiator or coolant bottle is hot.
JACKING AND TIRE CHANGING
Jack Location
• The jack and lug wrench are located inthe rear storage compartment.
Spare Tire Stowage
• Remove the tire cover, if equipped, and remove the lug nuts with the lug wrench
turning them counterclockwise. Remove wheel lock if equipped.
Preparations For Jacking
• Park on a firm, level surface. Avoid ice or slippery areas.
• Set the parking brake and shift the automatic transmission into PARK, or a manualtransmission into REVERSE.
• Turn the ignition to LOCK and turn on the Hazard Warning flasher.
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• Block both the front and rear of thewheel diagonally opposite of the jacking
position. For example, if changing the
right front tire, block the left rear wheel.
NOTE: Passengers should not remain in
the vehicle when the vehicle is being jacked.
Jacking And Tire Changing Instructions
• Remove the spare tire, jack and tools from the stored location.
• Loosen (but do not remove) the wheel lug nuts by turning them counterclockwise
one turn while the wheel is still on the ground.
• Assemble the jack and jacking tools. Connect the jack handle driver to the extension, then to the lug wrench.
• Operate the jack from the front or the rear of the vehicle. Place the jack under the axle tube. Do not raise the vehicle until you are sure the jack is fully engaged.
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• Raise the vehicle by turning the jackscrew clockwise. Raise the vehicle only
until the tire just clears the surface and
enough clearance is obtained to install
the spare tire.
• Remove the lug nuts and wheel.
• Position the spare wheel/tire on the vehicle and install the lug nuts with the
cone-shaped end toward the wheel.
Lightly tighten the lug nuts clockwise.
To avoid the risk of forcing the vehicle
off the jack, do not tighten the nuts fully
until the vehicle has been lowered.
• Lower the vehicle by turning the jack screw counterclockwise, and remove
the jack and wheel blocks.
• Finish tightening the lug nuts. Push down on the wrench while tightening for increased leverage. Alternate nuts until each one has been tightened twice. The
correct wheel nut tightness is 95 ft lbs (130 N•m). If in doubt about the correct
tightness, have them checked with a torque wrench by your authorized dealer or at
a service station.
• Secure the tire, jack, and tools in their proper locations.
WARNING!
• Do not attempt to change a tire on the side of the vehicle close to moving traffic. Pull far enough off the road to avoid the danger of being hit when
operating the jack or changing the wheel.
• Getting under a jacked-up vehicle is dangerous. The vehicle could slip off the jack and fall on you. You could be crushed. Never get any part of your body
under a vehicle that is on a jack. If you need to get under a raised vehicle, take
it to a service center where it can be raised on a lift.
• The jack is designed to use as a tool for changing tires only. The jack should not be used to lift the vehicle for service purposes. The vehicle should be
jacked on a firm, level surface only. Avoid ice or slippery areas.
• Carefully follow these tire changing procedures to help prevent personal injury or damage to your vehicle: Always park on a firm, level surface as far from the
edge of the roadway as possible before raising the vehicle.
• Raising the vehicle higher than necessary can make the vehicle less stable and could cause it to slip off the jack and hurt someone near it. Raise the vehicle
only enough to remove the tire.
• A loose tire or jack, thrown forward in a collision or hard stop, could endanger the occupants of the vehicle. Always stow the jack parts and the spare tire in
the places provided.
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JUMP-STARTING
• If your vehicle has a discharged battery it can be jump-started using a set of jumpercables and a battery in another vehicle or by using a portable battery booster pack.
• Jump-starting can be dangerous if done improperly so please follow the procedures in this section carefully.
NOTE: When using a portable battery booster pack follow the manufacturer’s operating
instructions and precautions.
Preparations for Jump-Start
• The battery in your vehicle is located in the right rear of the engine compartment.
• Set the parking brake, shift the automatic transmission into PARK and turn the ignition to LOCK.
• Turn off the heater, radio, and all unnecessary electrical accessories.
• If using another vehicle to jump-start the battery, park the vehicle within the jumper cables reach, set the parking brake and make sure the ignition is OFF.
Jump-Starting Procedure
• Connect the positive (+) end of the jumper cable to the positive (+) post of thedischarged vehicle.
• Connect the opposite end of the positive (+) jumper cable to the positive (+) post of the booster battery.
• Connect the negative end (-) of the jumper cable to the negative (-) post of the booster battery.
• Connect the opposite end of the negative (-) jumper cable to a good engine ground (exposed metal part of the discharged vehicle’s engine) away from the battery and
the fuel injection system.
• Start the engine in the vehicle that has the booster battery, let the engine idle a few minutes, and then start the engine in the vehicle with the discharged battery.
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Once the engine is started, remove the jumper cables in the reverse sequence:
• Disconnect the negative (-) jumper cable from the engine ground of the vehicle with the discharged battery.
• Disconnect the negative end (-) of the jumper cable from the negative (-) post of the booster battery.
• Disconnect the opposite end of the positive (+) jumper cable from the positive (+) post of the booster battery.
• Disconnect the positive (+) end of the jumper cable from the positive (+) post of the discharged vehicle.
• Reinstall the air intake duct.
• If frequent jump-starting is required to start your vehicle you should have the battery and charging system inspected at your authorized dealer.
CAUTION!
• Do not use a portable battery booster pack or any other booster source with asystem voltage greater than 12 Volts or damage to the battery, starter motor,
alternator or electrical system may occur.
• Failure to follow these procedures could result in damage to the charging system of the booster vehicle or the discharged vehicle.
• Accessories that can be plugged into the vehicle power outlets draw power from the vehicle’s battery, even when not in use (i.e., cellular phones, etc.).
Eventually, if plugged in long enough, the vehicle’s battery will discharge
sufficiently to degrade battery life and/or prevent the engine from starting.
WARNING!
• When temperatures are below the freezing point, electrolyte in a dischargedbattery may freeze. Do not attempt jump-starting because the battery could
rupture or explode and cause personal injury. Battery temperature must be
brought above freezing point before attempting a jump-start.
• Take care to avoid the radiator cooling fan whenever the hood is raised. It can start anytime the ignition switch is on. You can be injured by moving fan
blades.
• Remove any metal jewelry, such as watch bands or bracelets, that might make an inadvertent electrical contact. You could be severely injured.
• Batteries contain sulfuric acid that can burn your skin or eyes and generate hydrogen gas which is flammable and explosive. Keep open flames or sparks
away from the battery.
• Do not allow vehicles to touch each other as this could establish a ground connection and personal injury could result.
• Failure to follow this procedure could result in personal injury or property damage due to battery explosion.
(Continued)
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WARNING!(Continued)
• Do not connect the cable to the negative post (-) of the discharged battery.The resulting electrical spark could cause the battery to explode and could
result in personal injury.
EMERGENCY TOW HOOKS
• If your vehicle is equipped with tow hooks, they are mounted in the front and the
rear.
NOTE: For off-road recovery, it is recommended to use both of the front tow hooks to
minimize the risk of damage to the vehicle.
CAUTION!
Tow hooks are for emergency use only, to rescue a vehicle stranded off-road. Do
not use tow hooks for tow truck hookup or highway towing. You could damage
your vehicle. Tow straps are recommended when towing the vehicle; chains may
cause vehicle damage.
WARNING!
• Chains are not recommended for freeing a stuck vehicle. Chains may break, causing serious injury or death.
• Stand clear of vehicles when pulling with tow hooks. Tow straps may become disengaged, causing serious injury.
SHIFT LEVER OVERRIDE
• If a malfunction occurs and the shiftlever cannot be moved out of the PARK
position, you can use the following
procedure to temporarily move the shift
lever:
• To access the shift lever override,
remove the override cover located on
the PRNDL bezel, next to the shift
lever.
• Firmly set the parking brake.
• Turn the ignition switch to the ACC or ON position without starting the
engine.
• Press and maintain firm pressure on the brake pedal.
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• Using a screwdriver or similar tool, press and hold the override tab through theaccess port on the center console.
• Move the shift lever into the NEUTRAL position.
• The vehicle may then be started in NEUTRAL.
• Reinstall the override cover.
TOWING A DISABLED VEHICLE
• The manufacturer requires towing your vehicle with all four wheels OFFthe ground
using a flatbed.
CAUTION!
Towing this vehicle using any other method could result in extensive damage to
the transfer case and/or transmission.
FREEING A STUCK VEHICLE
• If your vehicle becomes stuck in mud, sand or snow, it can often be moved by a rocking motion. Turn your steering wheel right and left to clear the area around the
front wheels. Then shift back and forth between DRIVE/1st gear and REVERSE.
Using minimal accelerator pedal pressure to maintain the rocking motion, without
spinning the wheels, is most effective.
NOTE: If your vehicle is equipped with Traction Control or Electronic Stability Control
(ESC), turn the system OFF before attempting to “rock” the vehicle.
CAUTION!
• Racing the engine or spinning the wheels may lead to transmission overheating and failure. Allow the engine to idle with the shift lever in NEUTRAL
for at least one minute after every five rocking-motion cycles. This will minimize
overheating and reduce the risk of transmission failure during prolonged efforts
to free a stuck vehicle.
• When “rocking” a stuck vehicle by moving between DRIVE/1st gear and REVERSE, do not spin the wheels faster than 15 mph (24 km/h), or drivetrain
damage may result.
• Revving the engine or spinning the wheels too fast may lead to transmission overheating and failure. It can also damage the tires. Do not spin the wheels
above 30 mph (48 km/h) while in gear (no transmission shifting occurring).
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WARNING!
Fast spinning tires can be dangerous. Forces generated by excessive wheel
speeds may cause damage, or even failure, of the axle and tires. A tire could
explode and injure someone. Do not spin your vehicle's wheels faster than
30 mph (48 km/h) or for longer than 30 seconds continuously without stopping
when you are stuck and do not let anyone near a spinning wheel, no matter what
the speed.
EVENT DATA RECORDER (EDR)
• This vehicle is equipped with an event data recorder (EDR). The main purpose of anEDR is to record, in certain crash or near crash-like situations, such as an air bag
deployment or hitting a road obstacle, data that will assist in understanding how a
vehicle’s systems performed. The EDR is designed to record data related to vehicle
dynamics and safety systems for a short period of time, typically 30 seconds or less.
The EDR in this vehicle is designed to record such data as:
• How various systems in your vehicle were operating;
• Whether or not the driver and passenger safety belts were buckled/fastened;
• How far (if at all) the driver was depressing the accelerator and/or brake pedal;
and,
• How fast the vehicle was traveling.
• These data can help provide a better understanding of the circumstances in which crashes and injuries occur.
NOTE: EDR data are recorded by your vehicle only if a non-trivial crash situation occurs;
no data are recorded by the EDR under normal driving conditions and no personal data
(e.g. name, gender, age, and crash location) are recorded. However, other parties, such
as law enforcement, could combine the EDR data with the type of personally identifying
data routinely acquired during a crash investigation.
• To read data recorded by an EDR, special equipment is required, and access to thevehicle or the EDR is needed. In addition to the vehicle manufacturer, other parties
such as law enforcement, that have the special equipment, can read the information
if they have access to the vehicle or the EDR.
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OPENING THE HOOD
• Release the two hood latches locatedon the left and right side of the hood.
• Raise the hood and locate the safety latch, in the middle of the hood
opening.
• Push the latch to the left side of the vehicle, to open the hood. You may
have to push down slightly on the hood
before pushing the safety latch.
• Insert the support rod into the slot on the hood.
• To close the hood, remove the support rodandplaceitintheretainingclip,
then lower the hood slowly.
• Secure both of the hood latches.
WARNING!
Be sure the hood is fully latched before driving your vehicle. If the hood is not fully
latched, it could open when the vehicle is in motion and block your vision. Failure
to follow this warning could result in serious injury or death.
MAINTAINING YOUR VEHICLE
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ENGINE COMPARTMENT3.8L Engine
MAINTAINING YOUR VEHICLE
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