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Old 06-26-2011, 10:07 PM   #11
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Join Date: Jun 2011
Posts: 24
Thought I had the air/noise issue fixed but no. The noise came back but not until later in the weekend. Went to the dealer and it turns out that there is a problem with the anti-freeze line check valve. When the water level gets down to a given point in the tank, the suction over comes the spring on the check valve and begins to suck air. I was given a ball valve and have installed it in-line between the anti-freeze inlet and the pump. Hopefully this works.

Rockwood 8281SS
2007 F250 Lariat Crew Cab
One wife, two boys, two dogs
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