File · FORD-5-4-TRITON
5.4L Triton 3-valve spark plug ejection
Manufacturer
Ford
Years
2004–2008
Category
engine
Recovery range
$2k – $10k
What it is
3-valve 5.4L Triton engines eject spark plugs from the cylinder head, sometimes destroying threads. Repair costs $500–$2,500 per cylinder. Class action settled.
Models affected
- F-150 (2004–2008)
- F-250 (2004–2008)
- F-350 (2004–2008)
- Expedition (2004–2008)
- Mustang (2004–2008)
Symptoms owners describe
- spark plug
- blown plug
- misfire
- ticking
- loss of power
Citation
In re Ford Spark Plug Litigation