Is the spark plug numbering on a 5.4 Triton f150 truck looking at engine from front of 1 2 3 4 drivers side?
No, the firing order for a 5.4L Triton V8 engine in an F-150 is not 1-2-3-4 sequentially from the front on the driver's side. The firing order is more complex and involves both banks of cylinders. You'll need to consult your owner's manual or a reliable online resource (like a repair manual specific to your year and model F-150) to get the correct firing order for your specific engine. The firing order varies slightly depending on the year of your truck.