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We commonly see failed High-Pressure Fuel Pump (HPFP) on modern Common Rail Diesel Engines resulting in a tangled web of issues, expensive repairs and headaches. The most common symptons are poor startup or a lack of power (especially under hard acceleration).99% of the time HPFP failure is most likely due to internal wear or metal-on-metal contact which often sends metal particles/shavings, also known as "swarf" throughout the entire fuel system. If these contaminants are not removed completely …