2015 Jeep Grand Cherokee Owner Manual Supplement - Page 47

2015 Jeep Grand Cherokee Manual

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STARTING AND OPERATING 45 Do Not Operate The Engine With Failed Parts All engine failures give some warning before the parts fail. Be on the alert for changes in performance, sounds, and visual evidence that the engine requires service. Some important clues are: • engine misfiring or vibrating severely ENGINE BLOCK HEATER - IF EQUIPPED The engine block heater warms engine coolant and permits quicker starts in cold weather. Connect the heater cord to a ground-fault interrupter protected 110-115 Volt AC electrical outlet with a grounded, three-wire extension cord. 4 Its use is recommended for environments that routinely sudden loss of power fall below -10°F (-23°C). It should be used when the unusual engine noises vehicle has not been running for long periods of time and should be plugged in two hours prior to start. Its use is fuel, oil or coolant leaks required for cold starts with temperatures under -20°F sudden change, outside the normal operating range, in (-28°C). the engine operating temperature To ensure reliable starting at these temperatures, use of excessive smoke an externally powered electric engine block heater (availoil pressure drop able from your authorized dealer) is recommended.

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Do Not Operate The Engine With Failed Parts
All engine failures give some warning before the parts
fail. Be on the alert for changes in performance, sounds,
and visual evidence that the engine requires service.
Some important clues are:
•
engine misfiring or vibrating severely
•
sudden loss of power
•
unusual engine noises
•
fuel, oil or coolant leaks
•
sudden change, outside the normal operating range, in
the engine operating temperature
•
excessive smoke
•
oil pressure drop
ENGINE BLOCK HEATER — IF EQUIPPED
The
engine
block
heater
warms
engine
coolant
and
permits quicker starts in cold weather. Connect the heater
cord to a ground-fault interrupter protected 110–115 Volt
AC electrical outlet with a grounded, three-wire exten-
sion cord.
Its use is recommended for environments that routinely
fall below -10°F (-23°C). It should be used when the
vehicle has not been running for long periods of time and
should be plugged in two hours prior to start. Its use is
required for cold starts with temperatures under -20°F
(-28°C).
To ensure reliable starting at these temperatures, use of
an externally powered electric engine block heater (avail-
able from your authorized dealer) is recommended.
4
STARTING AND OPERATING
45