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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 …

WiseAutoTools.com Summary: Prevent future spark plug blowouts in your Ford Triton engine with one of our  spark plug thread repair kits. The Calvan 38900-8 kit is praised for its ease of use and effectiveness, while Helicoil inserts may not provide a permanent fix. The TIME-SERT 5600 kit is ideal for larger repairs and has been used successfully even when a Calvan repair failed. Follow proper installation procedures and the updated torque spec of 20-22 ft pounds to keep your engine …