The location of the block heater varies slightly depending on the specific engine configuration but is generally located:
* On the driver's side of the engine block: Look near the thermostat housing, often towards the lower front of the engine block. It will be a cylindrical heating element with a cord leading to a plug for connection to an external power source.
* Sometimes partially obscured: The heater might be partially hidden behind components like the alternator or other engine accessories. You may need a flashlight and possibly some maneuvering to see it clearly.
To be certain:
1. Check your owner's manual: This is the best place to start. It should specify whether your truck has a block heater and its location.
2. Look closely at the engine block: Armed with the knowledge of its likely location, carefully examine the driver's side of the engine.
3. Follow the cord (if visible): If you see a cord running from the engine to an exterior connection point, it leads you to the heater.
If you can't find it, a mechanic familiar with 7.3 Power Stroke engines can easily locate it or determine if one was ever installed.
