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That week we had three 6.7 Powerstrokes with the same weird injector knock
It was last month, and every single one had a bad #8 injector but perfect fuel pressure. We found a batch of bad connector o-rings from our usual supplier that were letting just enough air in to cause havoc. Has anyone else seen this specific failure pattern on the newer Fords?
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murphy.lisa7mo ago
The 6.7 Powerstroke uses unit injectors, not a common rail. You're right about the air intrusion problem though, those tiny o-rings can cause a knock that sounds just like a bad injector. It's a sneaky failure.
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riley587mo ago
That batch of bad o-rings sounds like a real nightmare to track down!
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gavin_mason317mo ago
Had a similar mess with some gaskets last year. Honestly riley58, we just had to go back and check every single install log. Took forever but found the pattern.
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