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We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.

What Does This Hvac Door Do?

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I was working on the truck today and seen this in the vent by your feet.  I am thinking it is the door for the defroster?  I think this has been off since last spring because I remember hearing something rattle.  I could never figure out what it was.  I did not notice anything unusual, but I have it set to blow air out at my feet 95% of the time or I have the windows down.post-1146-0-61941000-1391383531_thumb.jppost-1146-0-82005200-1391383551_thumb.jp

Edited by ABennin

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That clips on the top of the vent control shaft. I'm not sure of its exact function but I do know its for diverting air and in the control of it. This is not part of the blend door.

 

The tab on the bottom hooks the main door below it so make sure of your position before placing the top cover back on the HVAC case.

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    I don't actually have it all apart right now.  I was working under the dash and saw a shine from the light.  I was looking in from the passenger side and could see this in the vent and pulled it out with little effort from a needle nose pliers.  I was looking in the factory service manual, but it hard to tell exactly where it goes by the picture.  I will have to take another look at what you mentioned and see what exactly this one does in regards to operation. 

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    Welcome To Mopar1973Man.Com LLC

    We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.