Spark Plugs
 

i have a 2000 5.4 f150 4 by 4 now how hard exactly is it to change these things it looks a little involved and i dont know if its worth it for me to do it or let someone else do it

If you do do it yourself do it on a cold morning with the engine cold. I hear that it is really easy to strip the threads when removing them. Ford did not put anti sieze on them.

id say let someone else do it lol thats what i done

Yep I was gonna try to do it myself. Looked at the manual and saw what I was in store for. No thanks. You have to take off the fuel rails to get at them. It is pretty involved.