What year Fords have the spark plug issue?
Notorious Ford V8 spark plugs need an extended warranty Replacing spark plugs has been a no-brainer for most passenger vehicles for, say, the last 100 years. But for millions of owners of V8-powered Fords from the 2004 to 2008 model years, a spark-plug change can lead to an expensive, hours-long ordeal.
How much does it cost to replace spark plugs in a 5.4 Triton?
Ford F-150 Spark Plug Replacement Cost Estimate. Labor costs are estimated between $165 and $209 while parts are priced at $70.
What year did Ford stop making the 5.4 3 valve?
The engine saw several revisions during its lifespan. When it was first introduced in a SOHC configuration, it was ranked on Ward’s 10 Best Engines list for 1997-1998 and 2000-2002. The year later, Ford added a 3-valve SOHC design up until 1999 where it shifted to a 4-valve dual-overhead cam setup.
Why do spark plugs keep ejecting from Ford engines?
Ford originally insisted the problem was due to replacement plugs being improperly torqued. There’s one big problem with their argument, however. Owners complain that it’s the original factory spark plugs that are often ejecting from the engine. That indicates there is a defect, whether in the design or the manufacturing process, from the start.
What 2-valve engines are affected by the spark plug defect?
We believe this defect affects the following 2-valve engines: Triton 4.6L V8, 5.4L V8, 6.8L V10 & possibly others. A couple theories exist on why spark plugs in Fords are ejecting from their cylinders. Some blame the design of the the plugs and the use of a aluminum cylinder heads.
Why do my spark plugs keep breaking off?
Another possibility is having the original plugs in place for a long time and when they’re removed some of the threads may be destroyed because the plug threads have galded to the ones in the head. Find another shop. You don’t need an engine.
What kind of problems does a 2004 Ford F-150 have?
One of the most common complaints is with this engine configuration having problems with its spark plugs in certain Ford F-150 trucks, including the 2004 F-150. In one NHTSA complaint filed in 2019, the owner of a 2004 F-150 reports that the vehicle’s engine stalled while driving.