Question about 2005 Dodge Dakota
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?
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
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Posted on Jan 02, 2017
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
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
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
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