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Power Strokes
6.4 Tech
Swapping HPFP Gear?
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[QUOTE="DEEZUZ, post: 1512449, member: 1508"] I was being given after market injectors that we're allowing air back through the system. Ruined it in minutes. When a fuel system fails, there are thousands of microscopic pieces that shave off the pump and get everywhere. The purpose of backflushing the heads with old injectors is to clean the ports in the heads of that metal. search 6.4 fuel system failure guide, it will tell you every that can be cleaned and what needs to be replaced. Since you already have new one in, you might be ok but I would still flush it. I flush fuel from the return fitting on forward, remove the rear fuel ports on the heads. But fuel cooler, pumps, rails, sensors, those basically are replaced. [/QUOTE]
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