Interesting comment from an online board
"Any Ford Truck with a 5.4L Engine The 5.4L 3-valve engines used in Ford Trucks from 2004 to 2010 develop camshaft phaser issues, especially when engines exceed the 100,000 mile mark. The first sig...
Forum Discussion
I have always been pleased with my F-150 with 5.4 and have 130,000 miles now. I can attest to a ridiculous charge to change the plugs. I don't remember that price but it was around $300
