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Saw a 7.3 go from 18 mpg to 11 in under 6 months

Buddy of mine in Phoenix ignored a small coolant leak for way too long and it cooked his injector cups. After replacing them and a set of injectors he's getting worse fuel economy than before the swap. Anyone else run into this where a fix makes things worse instead of better?
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2 Comments
kelly.dylan
Did you try recalibrating the injectors with a scan tool after the swap? Sounds like his truck is just dumping fuel now instead of burning it clean. At this rate he'll be saving money by walking.
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mason_flores21
Man walked right past free gas money? Unreal.
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