Question about 1999 Dodge Ram

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Air only blows on defrost (windshield)

My 99 dodge ram diesel 3500 heater only blows on defrost. I cannot change it to floor or panel or mix. I have read elsewhere that it could be the 'blend' door actuator. If this is the problem, is it vacuum or electrically operated? The temp and blower work fine.

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  • crosierj13 Dec 08, 2008

    my heater only work on the floor setting and nothing else. i have a 1999 dodge ram extended cab

  • Anonymous Mar 15, 2009

    cant get the air off the deforst

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Check vacuum lines on firewall for leak, check all vacuum lines if one on fire wall is ok , doors work off vacuum

Posted on Oct 14, 2009

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Should be electric and yes your right , the actuator .

Posted on Dec 04, 2008

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Mode Door 1.
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<!--[if !supportLists]-->4.Mode Door 2.
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?

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