Jeep 2006 Commander User Manual download pdf (Page 356)

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101

Belts should be inspected for evidence of cuts, cracks,

glazing, or frayed cords and replaced if there is indication

of damage which could result in belt failure. Low gen-

erator belt tension can cause battery failure.

Also, check belt routing to make sure there is no inter-

ference between the belts and other engine components.

Spark Plugs

Spark plugs must fire properly to assure engine perfor-

mance and emission control. New spark plugs should be

installed at the specified mileage. The entire set should be

replaced if there is any malfunction due to a faulty spark

plug. Refer to the “Vehicle Emission Control Informa-

tion” 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.

356 MAINTAINING YOUR VEHICLE

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Jeep 2006 Commander User Manual Page 356

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