2001 5.4L V8 Triton - Spark Plug Issues
 

I have a 2001 Ford F150 Supercab XLT with the 5.4L Triton, 4x4, 155,000 miles

Just looking for a trouble-shoot on an issue with one of my spark plugs... I have all eight installed (Motorcraft nickel threads to 28psi) but I have one that seems to corrode a lot faster than any of the others, and it is constant.

The same plug craps out earlier than the rest every time. It almost seems like it's not getting a good seal above it and maybe water is getting in?

I just recently changed the coils (and they all look to be getting a good seal), and checked all the plugs... All were fine except this one. Didn't know if anyone else has had this issue, or if anyone can help me fix it!

Thanks ahead of time!

- - Beavsman - -
'01 F-150 XLT 5.4L Triton 155K and going

Which plug?

Driver's Side
 

Driver's Side
Second one from the front:

Front Bumper
1
2
3
4
Cab