deweysmith
Full Access Members
You must have never seen a 2003 5.4 engine to make that statement. The rear plugs are buried and very difficult to change. They go under the firewall. It would take a lot longer than 20 minutes to change the plugs, coils and wires on a regular engine let alone a 2003 5.4. Do some research before you comment.
Longer than 20 minutes, but not much. My untrained 16-year-old self did them all in under 2 hours many years ago.