catalytic converter JEEP LIBERTY 2006 KJ / 1.G Owners Manual

When the engine is running, the “Malfunction Indicator
Light” may flash to alert of serious conditions that could
lead to immediate loss of power or severe catalytic
converter damage. The vehicle should be serviced as
soon as possible if this occurs. (See page 316 for more
information.)
9. Anti-Lock Warning Light (ABS) — If Equipped This light monitors the Anti-Lock Brake System
(ABS) described elsewhere in this manual. This
light will come on when the ignition switch is turned to
the ON position and may stay on for as long as three
seconds.
If the light comes back on immediately or comes on
during driving, it indicates that the Anti-Lock portion of
the brake system is not functioning and that service is
required, however, the conventional brake system will continue to operate normally provided that the BRAKE
warning light is not on. Also, a chime will sound if the
light comes back on.
If the ABS light is on, the brake system should be serviced
as soon as possible to restore the benefit of Anti-Lock
Brakes.
The operation of the ABS light can be checked by turning
the ignition switch from the OFF position to the ON
position. The light should illuminate for approximately
four seconds. The light should then turn off unless a
brake fault is detected. If the light does not illuminate,
have the light inspected by an authorized dealer.
10. Charging System Warning Light
This light shows the status of the electrical charg-
ing system. The light should come on for three
seconds when the ignition is first turned ON. If the light
comes back on immediately or comes on while driving, it
means that there is a problem with the charging system
UNDERSTANDING YOUR INSTRUMENT PANEL 175
4

•The use of leaded gas is prohibited by Federal law.
Using leaded gasoline can impair engine performance,
damage the emission control system.
•An out-of-tune engine, or certain fuel or ignition
malfunctions, can cause the catalytic converter to
overheat. If you notice a pungent burning odor or
some light smoke, your engine may be out of tune or
malfunctioning and may require immediate service.
Contact your dealer for service assistance.
•The use of fuel additives which are now being sold as
octane enhancers is not recommended. Most of these
products contain high concentrations of methanol.
Fuel system damage or vehicle performance problems
resulting from the use of such fuels or additives is not
the responsibility of the manufacturer.
NOTE: Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
Carbon Monoxide Warnings
WARNING!
Carbon monoxide (CO) in exhaust gases is deadly.
Follow the precautions below to prevent carbon
monoxide poisoning:
•Do not inhale exhaust gases. They contain carbon
monoxide, a colorless and odorless gas which can kill.
Never run the engine in a closed area, such as a
garage, and never sit in a parked vehicle with the
engine running for an extended period. If the vehicle is
stopped in an open area with the engine running for
more than a short period, adjust the ventilation system
to force fresh, outside air into the vehicle.
•Guard against carbon monoxide with proper mainte-
nance. Have the exhaust system inspected every time
STARTING AND OPERATING 279
5

WARNING!
Do not attempt to push or tow your vehicle to get it
started. Unburned fuel could enter the catalytic
converter and, once the engine has started, ignite and
damage the converter and vehicle.
EMERGENCY TOW HOOKS — IF EQUIPPED
If your vehicle is equipped with tow hooks, they are
mounted in the front and the rear.
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!
Stand clear of vehicles when pulling with tow
hooks. Tow straps and chains may break, causing
serious injury.
WHAT TO DO IN EMERGENCIES 309
6

MAINTAINING YOUR VEHICLE
CONTENTS

3.7L Engine ...........................314

2.8L Turbo Diesel Engine .................315

Onboard Diagnostic System — OBD II ........316
▫ Loose Fuel Filler Cap Message ............316

Emissions Inspection And Maintenance
Programs ............................317

Replacement Parts ......................318

Dealer Service .........................318

Maintenance Procedures ..................319 ▫
Engine Oil ..........................319
▫ Drive Belts — Check Condition And Tension . . 323
▫ Spark Plugs .........................324
▫ Catalytic Converter ....................324
▫ Crankcase Emission Control System ........326
▫ Air Cleaner Filter .....................326
▫ Maintenance-Free Battery ................326
▫ Air Conditioner Maintenance .............327
▫ Power Steering Fluid Check ..............328
7

Spark Plugs
Spark plugs must fire properly to assure engine perfor-
mance and emission control. New plugs should be in-
stalled at the mileage specified in the appropriate main-
tenance chart. The entire set should be replaced if there is
any malfunction due to a faulty spark plug.
Refer to the “Vehicle Emission Control Information” label
in the engine compartment for spark plug information.
Catalytic Converter
The catalytic converter requires the use of unleaded fuel
only. Leaded gasoline will destroy the effectiveness of the
converter as an emission control device.
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.
324 MAINTAINING YOUR 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.
To minimize the possibility of catalytic converter dam-
age:
•Do not shut off the engine or interrupt the ignition
when the transmission is in gear and the vehicle is in
motion.
•Do not try to start the engine by pushing or towing the
vehicle.
•Do not idle the engine with any spark plug wires
disconnected or removed, such as when diagnostic
testing.
•Do not idle the engine for prolonged periods during
very rough idle or malfunctioning operating condi-
tions.
•Do not allow vehicle to run out of fuel.
NOTE: Intentional tampering with emissions control
systems can result in civil penalties being assessed
against you.
MAINTAINING YOUR VEHICLE 325
7

Bar, Light........................... 1 19,359
Battery ............................... 326
Emergency Starting ..................... 307
Keyless Transmitter Replacement (RKE) ....... 27
Saving Feature (Protection) ............... 118
Belts, Drive ............................ 323
Body Mechanism Lubrication ............... 329
B-Pillar Location ........................ 257
Brake Assist System ...................... 127
Brake Assist Warning Light ................. 182
Brake Control System, Electronic ............. 125
Brake System ........................... 337
Anti-Lock (ABS) ................. 125,175,245
Hoses .............................. 338
Master Cylinder ....................... 338
Parking ............................. 243
Warning Light ........................ 178
Brake/Transmission Interlock ............... 227
Break-In Recommendations, New Vehicle ........ 71 Bulb Replacement
....................... 356
Bulbs, Light ............................ 356
Calibration, Compass ..................... 143
Capacities, Fluid ........................ 362
Caps, Filler Fuel ................................ 281
Radiator (Coolant Pressure) ............... 334
Car Washes ............................ 345
Carbon Monoxide Warning ..............147,279
Cargo Area Cover ....................... 157
Cargo Area Features ...................... 157
Cargo Compartment Light ............................ 1 15,157
Luggage Carrier ....................... 164
Cargo Light ......................... 1 15,157
Cargo Organizer ........................ 160
Cargo Tie-Downs ........................ 158
Catalytic Converter ...................... 324
INDEX 403
10

Caution, Exhaust Gas................... 72,147
CD (Compact Disc) Changer .............189,199
CD (Compact Disc) Player .........185,187,191,194
CD (Compact Disc) Player Maintenance ........ 207
Cellular Phone ........................ 83,207
Center High Mounted Stop Light ............ 361
Chains, Tire ............................ 274
Changing A Flat Tire ..................... 302
Charging System Light .................... 175
Chart, Tire Sizing ........................ 254
Check Engine Light (Malfunction Indicator Light) . 317
Child Restraint ...................... 61,66,69
Child Restraint Tether Anchors .............65,66
Child Safety Locks ........................ 21
Climate Control ......................... 208
Clock ................................ 183
Clutch Interlocking Ignition System ........217,226
Command-Trac Operation .................. 234
Compact Disc (CD) Maintenance ............. 207 Compass
.............................. 143
Compass Calibration ..................... 143
Compass Variance ....................... 144
Computer, Trip/Travel .................... 141
Console, Overhead ....................... 135
Contract, Service ........................ 396
Converter, Catalytic ...................... 324
Cool Down, Turbo ....................... 220
Cooling System ......................... 332
Adding Coolant (Antifreeze) .............. 334
Coolant Capacity ...................... 362
Coolant Level ......................... 335
Disposal of Used Coolant ................ 335
Drain, Flush, and Refill .................. 332
Inspection ........................... 332
Points to Remember .................... 336
Pressure Cap ......................... 334
Radiator Cap ......................... 334
Selection of Coolant (Antifreeze) .........333,362
404 INDEX