The 2000 Ford Explorer XLS came with several engine options. To determine which engine is in *your* specific Explorer, you need to check one of the following:
* The vehicle's identification number (VIN): The VIN contains all the information about your vehicle's specifications, including the engine. You can decode the VIN online using various free VIN decoders.
* The engine bay: Look for an engine identification plate on the engine block itself. This plate will have the engine code (e.g., 4.0L SOHC, 4.0L OHV, etc.).
* Your vehicle's paperwork: The original paperwork (title, owner's manual) may specify the engine.
* Your vehicle's registration: In some jurisdictions, the registration documents list the engine size.
Once you find the engine code, you can easily search online to confirm the engine displacement and type (V6, etc.).