Air dog / FASS, are they really needed?? - Ford Powerstroke Diesel Forum
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Old 12-06-2010, 05:24 PM
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Air dog / FASS, are they really needed??

When it warms back up I'm planning on putting on a Titan fuel tank and I was thinking that while I was messing with the fuel system, it would be the ideal time to add an Air Dog or Fass air sep/filter/pump setup. My question is, are they really needed on the 6.4. Will they extend the life of the truck or give me some/any benefit?? And if they are worth doing (neither are cheap) is one superior to the other or is there another one out there that is better?? Thoughs ,insights???
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Old 12-06-2010, 07:27 PM
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If you are looking for superior filtration, they are worth every penny. I have the Air Dog II DF-165 on my truck and it filters amazingly!
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Old 12-06-2010, 07:29 PM
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Quote:
Originally Posted by 08stroker250 View Post
If you are looking for superior filtration, they are worth every penny. I have the Air Dog II DF-165 on my truck and it filters amazingly!
Does it remove all the water from your fuel? How is the install (difficulty)?
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Old 12-06-2010, 08:08 PM
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Does this replace your current water separator filter?
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Old 12-06-2010, 08:25 PM
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Originally Posted by PunisherGT3 View Post
Does it remove all the water from your fuel? How is the install (difficulty)?
Yes. It filters and separates water. It's not a difficult install. Some prefer to remove the bed and other like dropping the tank. If you have access to the necessary tools to remove the bed, I would go that route. It's a couple of hours worth of labor...a job better suited for 2 people.

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Originally Posted by Jacob_24 View Post
Does this replace your current water separator filter?
Yes. The Air Dog II replaces the factory low pressure system and pumps directly to the fuel bowl....which gives you added filtration.
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Old 12-06-2010, 08:35 PM
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So with the air dog II there would less possibility of getting water in the fuel system? Is it a job a weekend warrior can do or would a person be better off taking it to a shop?
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Old 12-06-2010, 11:04 PM
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i also installed the airdog 2 df-165, i did it without removing the bed or dropping the fuel tank, you can reach the draw straw without doing either of the two methods above...
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Old 12-07-2010, 02:28 AM
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Quote:
Originally Posted by 08stroker250 View Post
If you are looking for superior filtration, they are worth every penny. I have the Air Dog II DF-165 on my truck and it filters amazingly!
Speaking of fuel, I never drain my water separator anymore since I added the Spartan. Do I need to be draining b/c I never get a message to anymore?
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Old 12-07-2010, 09:52 AM
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Originally Posted by Stanley F350 View Post
Speaking of fuel, I never drain my water separator anymore since I added the Spartan. Do I need to be draining b/c I never get a message to anymore?
Yes, you still need to be draining the separator.
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Old 12-08-2010, 12:54 AM
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Originally Posted by 08stroker250 View Post
Yes, you still need to be draining the separator.
Thanks Jeff: I drained it today but I didn't see any water in the fuel

I drained it from the yellow valve under the truck on the driver side, is there another area also or is that the only one to drain.
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