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NEW! Technical Info: 4th Generation: NON DRIVETRAIN Technical discussion of fourth generation (2007.5 and up) 6.7L equipped trucks. Post your non drivetrain questions, solutions and upgrades here. DO NOT post drivetrain discussions in this section! For trucks with the 5.9L engine use the appropriate 3rd gen forums.
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Old 08-14-2020
kzcountry kzcountry is offline
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Default Engine code P0306

My dad had the water in the fuel light come on
They drained the water out at the water drain location
The truck is missing now. Could it had damaged an injector or what? I needing my truck to pull a load on monday. Any help would be appreciated
2008 6.7 6 speed 3500.
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Old 08-14-2020
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pullinforme pullinforme is offline
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Change the fuel filter and get some power service filters block water and protect injectors as long as you drain it did the light go out
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Old 08-14-2020
kzcountry kzcountry is offline
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Yes, light went out. Going to find a filter now
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Old 08-15-2020
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It's my understanding water is VERY BAD for injectors, but.. unless you had quite a lot it should've been stopped at the filter housing.
Any chance you got air in the system?
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Old 08-15-2020
kzcountry kzcountry is offline
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Changed filter, put heet in the tank and run for about 10 miles. Still missing and engine light just cam back on.
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Old 08-15-2020
kzcountry kzcountry is offline
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Drained again to make sure no water. No lights on now still missing on 1 cylinder. Took about a 3 mile run.
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Old 4 Weeks Ago
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That code is for number six cylinder misfire, so I do you have a dead injector or the pass-through harness itself is gone bad. Easy way to tell is just to do a resistance test or a continuity test on the wiring harness. Should be less that 5ohms. The solenoid on the injector should be less than 1 ohm.
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