Which is the number 6 piston on a 2004 ford f150 5.4 liter?
On a 2004 Ford F-150 5.4L engine, the piston numbering typically starts from the passenger side (right side when facing the engine) of the engine and goes from front to back. Therefore, cylinder #6 would be towards the rear of the engine on the driver's side (left side when facing the engine).