I have a 03 Superduty. I bought it with 135000k miles. Price was unbeatable. Ford did a used car inspection but less than two weeks after the truck left the lot the #4 spark plug some how got loose and completly stripped the head. Now its in the shop and i am out money.
Is this a common problem for the 5.4 engine?
Also what other common problems does this year ford have so i know in advance?