Number 2 cylinder location 1999 Expedition 5.4 Triton motor?

The 1999 Ford Expedition 5.4L Triton V8 engine is arranged in a standard V8 configuration. Numbering cylinders typically starts from the passenger side (right side when facing the engine) and moves toward the driver's side (left) in a serpentine pattern.

Therefore, cylinder #2 would be located on the passenger side (right) bank of the engine, towards the front. It's not the very front cylinder but rather the second one from the front on that bank.

To be absolutely certain, consult a repair manual specific to your 1999 Ford Expedition 5.4L Triton engine. A diagram showing the cylinder arrangement will be included.