What is the firing order for a Ford F 150 54L?

The Ford F-150 with a 5.4L engine (various years and configurations existed) generally uses a firing order of 1-5-4-8-6-3-7-2. However, it's crucial to verify this with your specific engine's specifications. The firing order can be found:

* On the engine block itself: Often cast into the block or on a tag.

* In your owner's manual: This is the most reliable source.

* Online repair manuals: Sites like Chilton or Haynes offer manuals specific to your year and model.

Using the incorrect firing order can lead to serious engine damage, so always double-check.