Question about 2005 Dodge Dakota

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Center air vents

When at highway speed the A/C vent switches from panel to floor vent while selecter knob is still on panel. If you shut engine off for awhile and restart it will blow out of panel vents again till you travel awhile at higher RPM range for awhile then it blows out floor vent again. Any idea of problem?

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  • Dodge Master
  • 3,679 Answers

Cant think why going at a higher rpm could change the vent setting but at a higher rpm the a/c will get to a lower temp so perhaps the vent setting knob is at fault and the vents are set to floor and not the panel. i'd investigate the vent knob operation as a first step let me know how it goes

Posted on Apr 22, 2014

  • Daryl Gleaton Apr 22, 2014

    Ok, the vehicle has a vacuum leak, check the vacuum lines by visually inspecting for cracks etc. Listen for leaks often you can hear a leak when vehicle is running. When driving at higher rpm the vacuum falls off on an engine . This will cause what is happening to your heater vent directional control. It does sound like the control valve is leaking as well. Check at control for vacuum leaks.. Also check the vacuum lines going to the vacuum chamber. This is usually shaped like a ball and has vacuum lines going to it. It is located generally in the front passenger side below the windshield washer fluid or in that general area. Good luck I hope this solves your problem. Please post a solved comment on fixya, so I receive credit for the solve. This will increase my ranking on fixya.com That is how I get paid. By knowing I am helping!!!!

  • steve Apr 22, 2014

    sorry but i dont think the vacuum has anything to do with the control of the air vent position unless i've completely misunderstood the original post

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Posted on Jan 02, 2017

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SOURCE: The air cond blows out of the floor instead of the vents

i dont know if you have checked the vacuum lines underneath the dash but my truck was doing it after i replaced the heater core and i come to find out that it was the vacuum line that comes through the fire wall that was disconnected. after i hooked it back up it started working right again.

Posted on Aug 17, 2008

  • 4 Answers

SOURCE: Heater on driver-side blows barely warm air other vents blow cold

the most probabale cause of this would be a disfunctional hear core if you replace your heater your heater will more than likley work the the way it's supposed to

Posted on Jan 18, 2009

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SOURCE: 2003 dodge caravan air vents will not change position?

I HAD THE SAME PROB WITH MINE I REPLACED THE HEATER CONTROL PANEL & IT FIXED IT

Posted on Mar 07, 2009

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SOURCE: Air not blowing out of the vents of my 2003 Dodge Durango

From what I hear it is a vacuum line issue. Mine is doing the exact same thing. So, I am going to get a diagram and try checking the vacuum lines to see if any are loose or tore

I go under the dash and feel the air flowing out the floor and it is coming out of the defrost, also. I noticed under the drivers side today that air is flowing and there seems to be a gap in between a part under there. There was some material stuff I saw around the edge of it that sticky brown stuff and it sometimes before came out my vents all the time. Anyways, not sure if my air is just not sealed good to blow out the vents but it is something that happened not long ago and we've not done anything under our dash area.

Posted on Jun 27, 2009

  • 98 Answers

SOURCE: 2003 dodge durango front AC vents not working

had this trouble in a dakota it was a blend door in the heater unit. had to remove entire dash to repair

Posted on Aug 12, 2009

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