2006 JEEP WRANGLER Owners Manual

4. Operate jack from the front or the rear of the vehicle.
Place the jack under the axle tube, as shown. Do not raise
the vehicle until you are sure the jack is fully engaged.
5. Raise the vehicle by turning the jack screw to the right.
Raise the vehicle only until the tire just clears the surface and enough clearance is obtained to install the spare tire.
Minimum tire lift provides maximum stability.
WARNING!
Raising the vehicle higher than necessary can make
the vehicle less stable and cause an accident. It could
slip off the jack and hurt someone near it. Raise the
vehicle only enough to remove the tire.
6. Remove the lug nuts and wheel.
7. Position spare wheel/tire on vehicle and install lug
nuts with cone-shaped end toward wheel. Lightly tighten
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.
8. Lower the vehicle by turning the jack screw to the left,
and remove the jack and wheel blocks.
Jacking Locations
WHAT TO DO IN EMERGENCIES 257
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9. Finish tightening the lug nuts. Push down on the
wrench while tightening for increased leverage. Alternate
nuts until each nut has been tightened twice. Correct
wheel nut tightness is 130 N·m (95 ft. lbs). If in doubt
about the correct tightness, have them checked with a
torque wrench by your authorized dealer or at a service
station.
10. Remove jack assembly and wheel blocks.
WARNING!
A loose tire or jack, thrown forward in a collision or
hard stop could endanger the occupants of the ve-
hicle. Always stow the jack parts and the spare tire in
the places provided.
11. Secure the tire, jack, and tools in their proper loca-
tions.
JUMP STARTING
WARNING!
To prevent personal injury or damage to clothing, do
not allow battery fluid to contact eyes, skin, or
fabrics. Do not lean over a battery when connecting
jumper cables or allow cable clamps to touch each
other. Keep open flames or sparks away from battery
vent holes. Always wear eye protection when work-
ing with batteries. Do not use a booster battery or
any other booster source that has a greater than
12–volt system, i.e. do not use a 24–volt power
source.
Your vehicle is equipped with a 12–volt battery. If it
becomes necessary to use a booster battery, with jumper
cables, to start the vehicle’s engine because it’s battery is
discharged, the following procedure should be followed:
258 WHAT TO DO IN EMERGENCIES

Set the parking brake, place an automatic transmission in
P (Park) (or N (Neutral) for a manual transmission). Turn
off lights, heater, and other electrical loads. Observe
charge indicator in the battery. If indicator is light or
yellow, replace the battery.
CAUTION!
Use the “Jump Starting” procedure only when the
charge indicator is dark in the center. Do not attempt
jump starting when the battery charge indicator is
bright or yellow. If the charge indicator is dark and
has a green dot in the center, failure to start is not
due to a discharged battery and the cranking system
should be checked.
1. Attach one end of the jumper cable to the positive
terminal of the discharged battery and the other end of
the same cable to the positive terminal of the booster
battery.
WARNING!
Do not permit vehicles to touch each other as this
could establish a ground connection and personal
injury could result.
2. Connect one end of the other jumper cable to the
negative terminal of the booster battery. Connect the
other end of the jumper cable to a good ground on the
vehicle with the discharged battery. Make sure a good
connection is made, free of dirt and grease.
WHAT TO DO IN EMERGENCIES 259
6

WARNING!
•Do not connect the cable to the negative terminal
of the discharged battery. The resulting electrical
spark could cause the battery to explode.
•During cold weather when temperatures are be-
low freezing point, electrolyte in a discharged
battery may freeze. Do not attempt jump starting
because the battery could rupture or explode. The
battery temperature must be brought up above
freezing point before attempting to jump start.
3. Take care that the clamps from one cable do not touch
clamps from the other cable. Do not lean over the battery
when making the connection. The negative connection
must provide good electrical conductivity and current
carrying capacity.
4. After the engine is started or if the engine fails to start,
the cables must be disconnected in the following order: a. Disconnect the negative cable at the engine ground.
b. Disconnect the negative cable at the negative termi-
nal on the booster battery.
c. Disconnect the cable from the positive terminals of
both batteries.
260 WHAT TO DO IN EMERGENCIES

WARNING!
Any procedure other than above could result in:
•Personal injury caused by electrolyte squirting
out the battery vent.
•Personal injury or property damage due to battery
explosion.
•Damage to charging system of booster vehicle or
of immobilized vehicle.
TOWING A DISABLED VEHICLE
The manufacturer recommends towing with all four
wheels off the ground. Acceptable methods are to tow the
vehicle on a flatbed or with one end of the vehicle raised
and the other end on a towing dolly.
WHAT TO DO IN EMERGENCIES 261
6

MAINTAINING YOUR VEHICLE
CONTENTS

2.4L Engine ...........................266

4.0L Engine ...........................267

Onboard Diagnostic System — OBD II ........268

Emissions Inspection And Maintenance
Programs ............................269

Replacement Parts ......................270

Dealer Service .........................270

Maintenance Procedures ..................271
▫ Engine Oil ..........................271 ▫
Drive Belts — Check Condition And Tension . . 275
▫ Spark Plugs .........................275
▫ Catalytic Converter ....................275
▫ Engine Timing Belt — 2.4L Engine .........277
▫ Ignition Wiring System — 2.4L Engine ......277
▫ Crankcase Emission Control System ........277
▫ Fuel Filter ..........................278
▫ Engine Air Cleaner Filter ................278
▫ Maintenance-Free Battery ................278
7

▫Air Conditioner Maintenance .............280
▫ Power Steering Fluid Check ..............281
▫ Driveline And Steering Component
Lubrication ..........................282
▫ Body Lubrication .....................282
▫ Windshield Wiper Blades ................282
▫ Windshield Washers ...................283
▫ Exhaust System ......................283
▫ Cooling System .......................284
▫ Hoses And Vacuum/Vapor Harnesses .......289
▫ Brake System ........................290
▫ Automatic Transmission ................292
▫ Hydraulic Clutch Fluid —
Manual Transmission ..................294 ▫
Manual Transmission ..................294
▫ Transfer Case ........................295
▫ Front/Rear Axle Fluid ..................296
▫ Appearance Care And Protection From
Corrosion ...........................297

Fuse Panel ...........................305
▫ Interior Fuses ........................305
▫ Underhood Fuses
(Power Distribution Center) ..............307

Vehicle Storage ........................309

Replacement Bulbs — If Equipped ...........309

Bulb Replacement ......................310
▫ Head Light ..........................310
▫ Front Park/Turn Signal .................311
264 MAINTAINING YOUR VEHICLE