2009 Ford F150 Owner Guide 3rd Printing - Page 270

Driving Guarding against exhaust fumes Carbon monoxide is present in exhaust fumes. Take precautions to avoid its dangerous effects. WARNING: If you smell exhaust fumes inside your vehicle, have your dealer inspect your vehicle immediately. Do not drive if you smell exhaust fumes. Important ventilating information If the engine is idling while the vehicle is stopped for a long period of time, open the windows at least one inch (2.5 cm) or adjust the heating or air conditioning to bring in fresh air. ENGINE BLOCK HEATER (IF EQUIPPED) An engine block heater warms the engine coolant which aids in starting and allows the heater/defroster system to respond quickly. If your vehicle is equipped with this system, your equipment includes a heater element which is installed in your engine block and a wire harness which allows the user to connect the system to a grounded 120 volt a/c electrical source. The block heater system is most effective when outdoor temperatures reach below 0°F (-18°C). For flexible fuel vehicles, if operating with E85 ethanol, an engine block heater must be used if ambient temperature is below 0°F (-18°C). See Cold weather starting in the Driving chapter for more information on starting with ethanol. WARNING: Failure to follow engine block heater instructions could result in property damage or physical injury. WARNING: To reduce the risk of electrical shock, do not use your heater with ungrounded electrical systems or two-pronged (cheater) adapters. 270 2009 F-150 (f12) Owners Guide (own2002), 3rd Printing USA (fus)