Another happy ending to report on a spark plug replacement.

I have an '06 F150 FX4 5.4L with 45k miles. I had the TSB on hand and followed it to the letter (except I used Aero Kroil). I took my time and did not rush anything along and each one came out without breaking. All 8 made lots of screeching and moaning even after the hour soak with penetrating oil.

I have not put the new plugs in yet, decided to call it quits for the night. The new Motorcraft plugs will go in tomorrow (with the nickel antiseize).

Thanks to everyone on the forum who have posted their tips-n-tricks. Lots of reading here no doubt made the job go well. Next job is a spark plug replacement on the wife's 06 Mustang with 55k miles. They have the same spark plug and the same potential problem.

 

That's good news.

 

Man I bet that felt great.