Join Date: Aug 2013
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Not getting enough cabin airflow from HVAC
Did tons of searches without definitive answer. I cannot get an appropriate amount of airflow from the cab fan. I have to run A/C and fan wide open at all times to stay comfortable in warm weather.
Just bought truck, 08 F-450 reg cab XLT, manual A/C, single zone.
Truck A/C works, just checked freon levels, cab fan works appropriately at all speeds, no obstructions found.
I have had the fan out (all speeds work as does fan), doors "seem" to change from vent to floor, defrost, etc. No noises or other indications.
Just weak output from fan, seems to be weaker on two driver's side vents. However, fan had good strength when I had it out of the housing and all speeds worked as they should.
Any help would be appreciated. I have similar posts while searching without any answers.
Trying to figure out the blender door setup now.