1. Dirty or Old Spark Plugs. If your engine is misfiring, you may be able to fix the problem easily by replacing your spark plugs. Spark plugs are relatively easy to remove from engines and inspect for damage, and at less than $25 a piece, they are relatively cheap to replace, too. Dirty spark plugs can cause misfires as partially burned engine Well if you’ve ever owned a Ford then you may have had a spark plug blow out of it it is extremely common with these vehicles and I didn’t see any video of s Indexing spark plugs will typically make only a few more horsepower – usually less than 1% of total engine output. For a 500 hp engine, that’s only 5 hp. It is usually not worth the effort. There are also drawbacks to indexing spark plugs. When washers are added, the spark plug may loosen if the washers don’t crush properly and hold the The 2010 Ford F-150 has 8 problems reported for spark plug ejection. Average repair cost is $1,210 at 104,100 miles. On June 5, Ford Motor Co. agreed to a $2.2 million spark plug defect class action settlement, resolving claims that their vehicles feature defective spark plugs that were difficult and expensive for consumers to replace. This Ford class action settlement will reimburse qualifying consumers a portion of what they paid to replace the defective Spark plug issues with the 5.4 Triton are: Spark plug blowout on 2002 and earlier models of the 2-valve engine; Breaking spark plugs from 2004-2008 on the 3-valves; 6.8L Triton V10. The V10 Triton was the largest engine in the Triton or modular engine family. It was used as the alternative to the 6.7 Powerstroke for the Super Duty F250 and F350 Features: 0.6mm fine iridium centre electrode tip ensures high durability while providing a consistently stable spark. Zinc-chromate plating provides superior anti-corrosion and anti-seizing properties (do not apply thread lubricant - read installation section below). Improved acceleration and better fuel efficiency. Original Equipment AC Delco : Best Spark Plug Overall. Denso Iridium TT : Best Overall First Runner Up. E3 Diamondfire : Best Performance Spark Plug. NGK Spark Plugs : Best Standard Spark Plug .

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