Mercury Grand Marquis 2002 User Manual download pdf (Page 208)

How fail-safe cooling works

• Standard cluster

• Optional cluster

If the engine begins to overheat:

• The engine coolant temperature gauge will move to the H (hot) area

(if your vehicle is equipped with analog gauges).

• The engine coolant temperature gauge will illuminate all eight bars

and a tone will sound every five seconds for one minute (if your

vehicle is equipped with digital gauges).

• The

symbol will illuminate.

• The Check Engine indicator light will illuminate.

If the engine reaches a preset over-temperature condition, the engine

will automatically switch to alternating cylinder operation. Each disabled

cylinder acts as an air pump and cools the engine.

When this occurs the vehicle will still operate. However:

• The engine power will be limited.

• The air conditioning system will be disabled.

TEMP

Maintenance and Specifications

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Mercury Grand Marquis 2002 User Manual Page 208