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Wise Auto Tools: Spark plug thread failure is not exclusive to Ford vehicles, although Ford seems to have the highest number of issues with blown spark plugs or damaged spark plug threads for unknown reasons. However, import manufacturer's like Toyota, Nissan, or others can also experience recurring spark plug thread problems after a repair from a parts store, resulting in enlarged holes.Fortunately, Time-Sert offers a solution for these problems as well. It's important to note that the Tim …

DennisB WiseAutoTools.com © Summary: Ford’s are by far the vehicle that has the worst track record when blowing spark plugs out due to failed aluminum threads. This repair article is written by a Master Tech that has been helping auto repair shops and vehicle owners repair spark plug threads in Fords for many years. The article reveals which spark plug thread repair kits are worthwhile and which ones are just a waste of money that ultimately make the hole bigger and uglier! Brands covered are Fu …