2013 JEEP WRANGLER engine overheat

CAUTION!
•The catalytic converter requires the use of un-
leaded fuel only. Leaded gasoline will destroy the
effectiveness of the catalyst as an emissions control
device and may seriously reduce engine perfor-
mance and cause serious damage to the engine.
• Damage to the catalytic converter can result if your
vehicle is not kept in proper operating condition.
In the event of engine malfunction, particularly
involving engine misfire or other apparent loss of
performance, have your vehicle serviced promptly.
Continued operation of your vehicle with a severe
malfunction could cause the converter to overheat,
resulting in possible damage to the converter and
vehicle. 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.
NOTE:
Intentional tampering with emissions control sys-
tems can result in civil penalties being assessed against
you.
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.
7
MAINTAINING YOUR VEHICLE 585

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 engine coolant (antifreeze) when the
engine is overheated. Do not loosen or remove the
cap to cool an overheated engine. Heat causes pres-
sure 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.
• Do not use a pressure cap other than the one
specified for your vehicle. Personal injury or en-
gine damage may result.
Disposal Of Used Engine Coolant
Used ethylene glycol-based engine coolant (antifreeze) is
a regulated substance requiring proper disposal. Check
with your local authorities to determine the disposal
rules for your community. To prevent ingestion by ani-
mals or children, do not store ethylene glycol-based
engine coolant in open containers or allow it to remain in
puddles on the ground. If ingested by a child or pet, seek
emergency assistance immediately. Clean up any ground
spills immediately.
590 MAINTAINING YOUR VEHICLE

Electronic Speed Control (Cruise Control)........180
Electronic Stability Control (ESC) ..............467
Electronic Throttle Control Warning Light ........318
Electronic Vehicle Information Center (EVIC) ......319
Emergency Brake ........................ .456
Emergency, In Case of Jacking .............................. .547
Jump Starting ......................... .555
Tow Hooks ........................... .561
Emission Control System Maintenance ..........571
Engine Air Cleaner .......................... .577
Block Heater ......................... .418
Break-In Recommendations .................99
Compartment ......................... .569
Compartment Identification ................569
Cooling ............................. .586
Exhaust Gas Caution .....................100
Fails to Start .......................... .416Flooded, Starting
...................... .416
Fuel Requirements ..................... .513
Jump Starting ......................... .555
Oil................................. .574
Oil Change Interval ..................... .329
Oil Selection .......................... .575
Oil Synthetic ......................... .576
Overheating .......................... .546
Starting ............................. .414
Temperature Gauge ..................... .309
Engine Oil Viscosity ...................... .576
Engine Oil Viscosity Chart ...................576
Enhanced Accident Response Feature ............70
Entry System, Illuminated ....................23
Ethanol ............................... .514
Event Data Recorder ........................74
Exhaust Gas Caution ...................... .100
Exhaust System .......................... .100
648 INDEX

Filter Disposal........................ .576
Identification Logo ..................... .575
Materials Added to ..................... .576
Pressure Warning Light ...................305
Recommendation ...................... .575
Synthetic ............................ .576
Viscosity ............................ .576
Oil Filter, Selection ....................... .577
Oil Pressure Light ........................ .305
Onboard Diagnostic System ..................570
Operating Precautions ..................... .570
Operator Manual (Owner’s Manual) .............6
Outside Rearview Mirrors ...................112
Overdrive .............................. .432
Overdrive OFF Switch ..................... .432
Overheating, Engine ...................... .309
Owner’s Manual (Operator Manual) .............6Paint Care
............................. .600
Panic Alarm ..............................26
Parking Brake ........................... .456
Passing Light ........................... .172
Personal Settings ......................... .335
Pets ....................................98
Pets, Transporting ..........................98
Phone, Cellular ...........................115
Phone, Hands-Free (Uconnect®) ...............115
Placard, Tire and Loading Information ..........483
Power Door Locks ............................40
Inverter ............................. .188
Mirrors ..............................114
Steering ............................. .455
Windows ..............................43
Pregnant Women and Seat Belts ................61
10
INDEX 655