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Heating & Cooling 3rd Gen Dodge Ram Heating & Cooling Problems and Questions.

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Old 01-11-2014, 11:48 PM
TingTing TingTing is offline
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My brother was having a problem on his 2012 it would run at temp and blow hot air then he would shut it off and go in a store and come back out and it would blow cold air only. So I pulled the glove box out and looked around under the dash and found the actuator that opened and closed for hot/cold air was stuck closed and wouldn't adjust with the turn of the heat knob. When he shut off his truck the actuator would open to the hot position, so I unplugged the actuator so it couldn't let cold air blow. Then started the truck plugged it back In and it seems to be working fine now. If you are sitting in the passenger seat the actuator is on the left side behind the glove box. Hope that helps.
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Old 01-27-2014, 11:03 AM
dtownrr dtownrr is offline
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Default firewall access to heater core

Originally Posted by ricksbuells View Post
If you are not careful the dash breaks apart really easy like they are ate up from being exposed to the elements. The blend door and the other vent doors are in a black box behind your glove box.They all have acuator motors on them ,there are 3 of them and you have to remove the dash to get to them .If you are hearing clicking I would say that one is slipping through the gears and not opening.I cut a rectangular hole in my firewall right at the heater core hoses and made a cover from sheet metal that can be removed. The heater core lays flat and is held by 1 screw now I can remove it in 5 min. start to finish.Why can't the factory do this from the start? Hope this helps, it took me alot of time learning the hard way.
Do you have any pictures of the mod you make to the firewall?
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