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Special tools are required to properly measure tension
and to restore belt tension to factory specifications. Also,
check belt routing to make sure there is no interference
between the belts and other engine components.
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.
MAINTAINING YOUR VEHICLE
295
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Summary of Contents for 2004 Liberty
Page 2: ......
Page 144: ......
Page 149: ...INSTRUMENT PANEL AND INTERIOR CONTROLS UNDERSTANDING YOUR INSTRUMENT PANEL 149 4 ...
Page 150: ...INSTRUMENT CLUSTER 150 UNDERSTANDING YOUR INSTRUMENT PANEL ...
Page 206: ......
Page 247: ...STARTING AND OPERATING 247 5 ...
Page 266: ...Minimum Vehicle Requirements for Trailer Towing 266 STARTING AND OPERATING ...
Page 282: ......
Page 285: ...2 4L ENGINE MAINTAINING YOUR VEHICLE 285 7 ...
Page 286: ...3 7L ENGINE 286 MAINTAINING YOUR VEHICLE ...
Page 352: ...352 IF YOU NEED CONSUMER ASSISTANCE ...
Page 356: ......
Page 357: ...INDEX 10 ...