2006 JEEP WRANGLER engine overheat

Do not use this emergency warning system when the
vehicle is in motion. Use it when your vehicle is disabled
and is creating a safety hazard for other motorists.
If it is necessary to leave the vehicle to go for service, the
flasher system will continue to operate with the ignition
key removed and the vehicle locked.
NOTE: With extended use, the flasher may wear down
your battery.
IF YOUR ENGINE OVERHEATS
In any of the following situations, you can reduce the
potential for overheating by taking the appropriate ac-
tion.
•On the highways — Slow down.
•In city traffic — While stopped, put transmission in N
(Neutral), but do not increase engine idle speed.
NOTE: There are steps that you can take to slow down
an impending overheat condition. If your air conditioner
is on, turn it off. The air conditioning system adds heat to
the engine cooling system and turning off the A/C
removes this heat. You can also turn the Temperature
Control to maximum heat, the Mode Control to floor, and
the Fan Control to High. This allows the heater core to act
as a supplement to the radiator and aids in removing heat
from the engine cooling system.
WHAT TO DO IN EMERGENCIES 253
6

Under normal operating conditions, the catalytic con-
verter will not require maintenance. However, it is im-
portant to keep the engine properly tuned to assure
proper catalyst operation and prevent possible catalyst
damage.
CAUTION!
Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition. In
the event of engine malfunction, particularly involv-
ing engine misfire or other apparent loss of perfor-
mance, have your vehicle serviced promptly. Contin-
ued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and
vehicle.
WARNING!
A hot exhaust system can start a fire if you park over
materials that can burn. Such materials might be
grass or leaves coming into contact with your ex-
haust system. Do not park or operate your vehicle in
areas where your exhaust system can contact any-
thing that can burn.
In unusual situations involving grossly malfunctioning
engine operation, a scorching odor may suggest severe
and abnormal catalyst overheating. If this occurs, stop
the vehicle, turn off the engine and allow it to cool.
Service, including a tune up to manufacturer’s specifica-
tions, should be obtained immediately.
276 MAINTAINING YOUR VEHICLE

Use only high purity water such as distilled or deionized
water when mixing the water/antifreeze (coolant) solu-
tion. The use of lower quality water will reduce the
amount of corrosion protection in the engine cooling
system.
Please note that it is the owner’s responsibility to main-
tain the proper level of protection against freezing ac-
cording to the temperatures occurring in the area where
the vehicle is operated.
NOTE: Mixing antifreeze/coolant types will decrease
the life of the antifreeze/coolant and will require more
frequent antifreeze/coolant changes.
Cooling System Pressure Cap
The cap must be fully tightened to prevent loss of
antifreeze/coolant, and to insure that antifreeze/coolant
will return to the radiator from the coolant reserve tank. The cap should be inspected and cleaned if there is any
accumulation of foreign material on the sealing surfaces.
WARNING!
The warning words DO NOT OPEN HOT on the
cooling system pressure cap are a safety precaution.
Never add antifreeze/coolant when the engine is
overheated. Do not loosen or remove the cap to cool
an overheated engine. Heat causes pressure to build
up in the cooling system. To prevent scalding or
injury, do not remove the pressure cap while the
system is hot or under pressure.
Disposal of Used Engine Coolant
Used ethylene glycol based antifreeze/coolant is a regu-
lated substance requiring proper disposal. Check with
your local authorities to determine the disposal rules for
your community. To prevent ingestion by animals or
MAINTAINING YOUR VEHICLE 287
7

Oil Filter............................ 274
Oil Pressure Gauge ..................... 149
Oil Selection .......................... 314
Overheating .......................... 253
Starting ............................. 182
Temperature Gauge ..................... 149
Timing Belt .......................... 277
Engine Oil Viscosity ...................... 274
Engine Oil Viscosity Chart ................. 274
Entry System, Illuminated .................. 17
Exhaust Gas Caution ................... 45,232
Exhaust System ......................... 283
Extender, Seat Belt ........................ 26
Exterior Finish Care ...................... 298
Fabric Care ......................... 300,302
Fabric Top ............................. 302
Filters Air Cleaner .......................... 278 Engine Fuel
.......................... 278
Engine Oil ........................... 274
Finish Care ............................ 298
Flashers Hazard Warning ....................... 252
Turn Signal ..................... 147,311,313
Flooded Engine Starting ................... 183
Fluid Capacities ......................... 314
Fluid Level Checks ...................... 296
Automatic Transmission ................. 292
Engine Oil ........................... 271
Manual Transmission ................... 294
Power Steering ........................ 281
Fluids, Lubricants and Genuine Parts .......... 315
Fog Light Service ........................ 311
Fog Lights ........................... 66,311
Folding Rear Seat ........................ 59
Folding Windshield ...................... 132
Four Wheel Drive ....................... 194
352 INDEX

Octane Rating, Gasoline (Fuel).............. 230
Odometer ............................. 150
Trip ................................ 150
Off-Pavement Driving (Off-Road) ............ 209
Off-Road Driving (Off-Pavement) ............ 209
Oil, Engine ............................ 271
Capacity ............................ 314
Dipstick ............................. 271
Filter ............................... 274
Identification Logo ..................... 273
Materials Added to ..................... 274
Recommendation ................... 273,314
Viscosity .......................... 274,314
Onboard Diagnostic System ..............268,269
Outside Rearview Mirrors .................. 56
Overheating, Engine ...................... 253
Owner’s Manual (Operator Manual) .......... 344
Paint Care ............................. 297 Paint Damage
.......................... 297
Parking Brake .......................... 200
Passing Light ........................... 65
PCV Valve ............................ 277
Pets .................................. 44
Pets, Transporting ........................ 44
Placard, Tire and Loading Information ......... 217
Polishing and Waxing ..................... 298
Power Distribution Center ..................... 307
Steering .......................... 207,281
Pregnant Women and Seat Belts .............. 26
Preparation for Jacking .................... 256
Pressure Gauge, Oil ...................... 149
Radial Ply Tires ......................... 224
Radio Broadcast Signals ................... 153
Radio Operation ...................... 154,172
Radio, Satellite .......................... 167
INDEX 357
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