6.0L hydro-locking with fuel - Ford Powerstroke Diesel Forum
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post #1 of 4 Old 08-07-2008, 06:55 AM Thread Starter
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6.0L hydro-locking with fuel

If there are any diesel techs or 6.0L owners out there that have come across this please help! We have an 04 F250 in our shop that is hyrdo locking with fuel in the #5 & #7 cylinders / injectors are new & o-rings checked & replaced / it is not the injectors or o-rings.

Thanks for any help
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post #2 of 4 Old 08-07-2008, 09:14 PM
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If it hyro-locked, I'd check to make sure it didn't bend a rod.

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post #3 of 4 Old 08-08-2008, 06:45 AM
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The injector cups have failed if its fuel. Ive done it with the heads on the truck but it isnt advised to do so.

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post #4 of 4 Old 08-09-2008, 04:58 PM
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most of the ones like what you are talking about i've seen have been from injector failure. most of the time injector tips crack causes uncrontroled fueling into cylinder sometimes crack may be hard to see too
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