Outside Air Coming In Passerger Floor

Asked by Dec 11, 2013 at 11:56 AM about the 2001 Dodge Durango SLT

Question type: Maintenance & Repair

2001 4.7L Durango.  Everything on HVAC works perfectly.  Problem is that outside air is coming in underneath passenger side dash.  Is not coming from a vent.  The faster you go the faster it comes in.  Is like having an open window that the HVAC system must compete with.  Is there a vent suck open somewhere?

1 Answer

2,915

The heater motor is under there along with the vent door, you can remove the glove box to take a look in there to see if there is something open that should not be. The blower motor resistor is also down there and a small piece to open to get in there, check if it is coming out there is so you need to check if they are properly in place. The heater takes air from outside under cowl grille, remove that and check if it comes in under there.

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