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Does a 2003 power stroke diesel 7.3 have block heater?

Yes, the 2003 Ford Powerstroke 7.3L diesel engine has a block heater. The block heater is an electric heating element located in the engine block that helps warm the engine coolant and make it easier to start the engine in cold weather. The block heater is powered by plugging it into an electrical outlet, and it can be turned on and off using a dashboard switch.