Question about 2004 Ford Expedition

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03 LINCOLN NAVIGATOR AC WONT BLOW OUT PANAL VENTS

AC BLOWS OUT VENTS UPON START UP BUT WHEN U GET GOING DOWN THE ROAD IT SWITCHES TO THE DEFROST THEN IF YOU STOP TURN OFF THE AC THEN TURN IT BACK ON THROUGH THE PANAL VENTS IT WORKS AGAIN TILL U PUT THE CAR IN GEAR AND LOAD IT????

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Check for a vacuum leak. First check the heater control valve to see if gray vacuum hose came off.

Posted on Jul 22, 2009

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