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What is the cylinder numbering sequence for a 2006 Ford 4.6 Engine?

The 2006 Ford 4.6L engine uses a passenger-side-first firing order, meaning the cylinders are numbered from the passenger side of the engine to the driver's side. Therefore, the firing order is reflected in the cylinder numbering. It's best to refer to a diagram, but generally speaking, the numbering would follow this pattern:

1. Passenger side, front

2. Passenger side, rear

3. Driver side, rear

4. Driver side, front

5. Passenger side, front

6. Passenger side, rear

7. Driver side, rear

8. Driver side, front

Important Note: While the numbering is generally consistent, always double-check with a diagram specific to your year and engine code to be absolutely certain. The engine bay often has markings to help you locate the cylinders.