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Possible a MAX A/C problem

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Old Jul 4, 2008 | 04:29 PM
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Possible a MAX A/C problem

I have a 2004 F-250 FX4 truck with the 5.4 L engine. Recently I noticed that when I turn on the A/C unit to the MAX A/C position there is a flutter in the air flow. This happens just after the A/C is turned on and goes away quickly. I noticed that the A/C unit may fluctuiate in area flow as i drive down the road. This problem seems only to occur in the MAX A/C position. Can anyone help or give me a clue to what may be going on.
Also why I have your attention I would like to know if it is normal for the A/C unit to run less cooler then at driving speed.
 
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