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Old 01-07-2014
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Join Date: Jan 2014
Location: Covington, ga
Posts: 2
Air flow from door vents

I recently bought a 2006 Ranger. During the recent cold snap I had the heater on and noticed cool air coming from what I think is a vent at the base of the door. I originally thought is was an air leak but I can feel the air flow when stopped as long as the fan is on. Is there air routed to the door as part of the duct work and why would it be cold when all the other vents emit warm air?
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Old 01-08-2014
Join Date: Oct 2010
Location: Boise, ID
Posts: 29
Cold air from door vent

I don't have a late-model Ranger but the older trucks also had similar screen-like openings at the bottom of the doors. As I have a base model truck, I assumed they were for speaker grills if the truck came equipped with a stereo.

To check if your truck has heat run to the doors, open the door and inspect the area near the door hinges to see if there is any ducting running from the kickpanel area to the door. It would either be an accordion-shaped duct or a rubber gasket type seal. With your heater on hot and your fan on full, check to see if there is air passing to the ducting. If not, check for ducting that may be disconnected under the dash.

If there isn't any ducting or opening, then you may just have a venting issue under the door panel. Under the door panel there should be a flexible sheet of plastic (like visqueen) that seals the door panel from the inner portion of the door. This plastic sheeting may have been removed at some point in the past and would account for air passing down along your window, through the inner portion of the door, and escaping from the grill near your leg. The original plastic sheeting was held in place by a butyl rubber based glue, remaining permanently flexible. I've replaced the sheeting on vehicles successfully using silicone, also.
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Old 01-08-2014
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Air from the heater/AC is not piped through the door. That is outside air seeping in through the door
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Old 01-08-2014
Thread Starter
Join Date: Jan 2014
Location: Covington, ga
Posts: 2
Thanks, I'll do my search based on your comments and see if I can figure it out. Thanks for your insight into my issue.
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