Question about 2003 Mercury Grand Marquis

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Climate Control The air conditioning only blows through the defroster vents. I took it to a repair shop and they said that the motor in the console is bad. Another said that they thought it was a vacuum leak. The one is an $800 repair and I don't know about the other. Do you have any suggestions?

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  • alebbisa Jan 25, 2009

    2005 grand maruis ls-The air conditioning Automatic climate contro cycles through all positions by it self i have no controle over it what the hell is wrong with it

  • rsmith9445 Apr 18, 2009

    air conditoning is ice cold but only blows thru defroster vents. i suspect vacuum leak but was wondering if someone can tell me where to look for the pinch or leak ?

  • scottac Apr 24, 2009

    The air will only blow out of the deforst and floor. Cold or hot nothing but the floor and defrost. Took it to a shop and they said control module was bad.

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Pull the AC control head out and check for vacuum at the back of the control, if there is no vacuum or very little then the plastic line is pinched where it comes through the firewall on the passenger side behind the kick panel, that is most often the spot it gets squashed. am sure it is allot less than $800 to fix, maybe $200.00

Posted on Sep 09, 2008

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