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Discussion Starter #1
Just a question would the o rings being bad cause the injectors to leak fuel into the oil?
 

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Discussion Starter #3
Thanks for the reply ,how would I tell witch one is bad ?
 

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Yes a bad o-ring or cracked injector sleeve (or head) can cause fuel to enter the oil. The work involved in finding the bad o-ring may be more than what is needed to change them all. Actually I do not know of a way to trace down a o-ring into oil leak. You may be able to put air into the system and look at all injectors for a leak.
 

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not sure if it would work on our trucks but my boss adapted a weed sprayer to fit the fitting on big trucks at work and sprays diesel into the head to find it. but like said probably easier to change all of them.
 

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Yes a bad o-ring or cracked injector sleeve (or head) can cause fuel to enter the oil. The work involved in finding the bad o-ring may be more than what is needed to change them all. Actually I do not know of a way to trace down a o-ring into oil leak. You may be able to put air into the system and look at all injectors for a leak.
In many cases, you can use UV dye in the fuel to find the leak. However, a trusted 6.0L tech told me that this doesn'r really work w/ the 6.0L.

This may work:
 
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