Extreme Cold Weather (Below –20°F Or –29°C)
To ensure reliable starting at these temperatures, use of an externally powered electric engine block heater (available from your authorized dealer) is recommended.
See also:
Powertrains
The all-new 2011 Jeep Grand Cherokee is available with two leading engine
options for North American markets.
The 2011 Jeep Grand Cherokee's standard engine is an all-new flexible fuel
3.6-liter ...
If Your Engine Overheats
In any of the following situations, you can reduce the
potential for overheating your engine by taking the
appropriate action.
• On the highways — slow down.
• In city traffic — while st ...
Outside Air Intake
Make sure the air intake, located directly in front of the
windshield, is free of obstructions such as leaves. Leaves
collected in the air intake may reduce airflow, and if they
enter the plenum ...


