03 6.0 fuel system - Ford Powerstroke Diesel Forum
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Old 05-30-2010, 09:43 AM
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03 6.0 fuel system

I am trying to spin myself up on the 6.0 fuel system. Does the fuel system on the 6.0 have two fuel pumps, the HFMC and another one mounted on the engine. If so what is the other pump called exactly. It is recommended that you upgrade the other if you upgrade one. For example, if I add a regulated return then should I add an AirDog?


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Old 05-31-2010, 01:23 AM


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There is only one pump built into the HFMC. The upper part in only the second filter housing. There isn't any need to run a regulated return system on these trucks.

What are you wanting out of the fuel system?

First add a fuel pressure gauge to the truck. This will allow you to know what the OEM pump is providing. IF you want additional fuel filtering and removal of air form the fuel the AirDog is going to do you fine. Look at the AD100 or AD150 and decide which is best for you.
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