2008 Jeep Grand Cherokee Owner's Manual - Page 283
2008 Jeep Grand Cherokee Manual
Page 283 highlights
STARTING AND OPERATING 283 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. Use the heater when temperatures below 0°F (-18°C) are expected to last for several days. The block heater must be plugged in at least one hour to have an adequate warming effect on the coolant. The engine block heater cord is located: • 3.7L/4.7L Engine - coiled and strapped to the engine oil dipstick tube. • 5.7L Engine - bundled and fastened to the injector harness. • 3.0L Diesel Engine - on the passenger side of the vehicle mounted on a stud between the fresh airbox and coolant reservoir. 5 WARNING! Remember to disconnect the cord before driving. Damage to the 110-115 volt AC electrical cord could cause electrocution.
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