Fuel Return mod - Ford Powerstroke Diesel Forum
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Old 08-31-2012, 07:57 PM
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Fuel Return mod

Hello all!

So I did the "blue spring mod" and added the Edge EAS fuel pressure monitor setup today on the 6.0L. In the process I broke the fuel return line, and had to come up with Fuel Injector hose and clamps to patch the problem till I get can with Ford to order a new part (3C3Z-9B273-AA).

During my search I saw people were discussing a fuel return block off mod, and something about an AD2 or something like that. Could someone explain this on an elementary level cause I have no clue what they are talking about . Is there a write up for doing this or is it buy the $600 kit and get to work?


2005 F250 CC 6.0L
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Old 09-03-2012, 03:15 AM


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It might be a Regulated Return kit for the fuel system. Unless you are going big on injectors you dont "need" a regulated return. Plenty of people will sell you the "need" but they "want" to make money.

Now an AirDog kit will give your injectors longer life by filtering and removing air from the fuel. I don't think any of the AD kits use any block off plate or part.
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