To be sure, you should:
* Consult your owner's manual: This is the best source for the exact location on your specific truck.
* Look closely at the engine block: Examine the lower driver's side, especially around the areas where coolant lines and sensors are located. The block heater cord will usually be visible, often with a protective rubber boot or grommet where it exits the engine compartment.
* Trace the cord: If you can locate the cord leading into the engine bay, tracing it back should lead you to the heater itself.
Be cautious when searching, as the engine and its components will be hot if recently run.
