What is the engine size of a 2001 Ford F150 XLT truck?

The 2001 Ford F-150 XLT could have come with several engine sizes. There wasn't a single engine offered. To know the engine size of a *specific* 2001 F-150 XLT, you'd need to check the vehicle's documentation (like the owner's manual or the vehicle identification number (VIN) sticker).

Common engine sizes for the 2001 F-150 included:

* 4.2L V6: This was a common option.

* 4.6L V8: Also a frequently found engine.

* 5.4L V8: A larger displacement V8 option.

Therefore, without more information about the specific truck, it's impossible to say for certain what its engine size is.