Quote:
Originally Posted by EcoCivic
Just taped off the exterior HVAC air intake on the cowl as an attempt to prevent hot outside air from getting forced into the cabin and it didn't work. With the fan off, air still comes in through either the vents or the interior HVAC intake behind the glovebox depending on whether recirculate is on or off. The amount seems to have been somewhat reduced though. Trying to figure out where air could be entering.
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On my Civic that air is not hot if I have the HVAC temp setting on the "cold" side. On the 6th Gen Civic, the temp selector cuts off the hot coolant from circulating into the heater core.