Changing ignition coils on a 2006 ford F150 is there one for each cylinder?
No, the 2006 Ford F-150 does not have one ignition coil per cylinder. It uses a coil-on-plug (COP) system, but it's typically arranged with one coil per two cylinders. So, you'll likely have fewer coils than cylinders. The exact arrangement (how many and which cylinders each coil fires) depends on the engine (4.2L V6, 4.6L V8, 5.4L V8). You'll need to consult your owner's manual or a repair manual specific to your engine to determine the precise number and location of the ignition coils.