can you explain? The blend door works fine and the mode door directs air to the selected vents and the selected vents only. Recirc door appears to be working as well. Is there another door I'm not aware of? Either way it sounds like i'll be pulling the HVAC box so i guess it doesn't much...

thank you for the replies.The truck parks outside in a gravel lot and sits for as long as weeks as a time. I have removed the blower motor and observed it operation. No signs of blockage visible from the port for the motor. No material in the hamster wheel whatsoever. Swapped in a motor...

2008 F-250 XL/5.4Truck has consistently weak air flow out of all interior vents. Mode and blend doors appear to be functioning properly. Defrost vents seem to be more restricted than others flowing almost no air at all. Recirculating improves air flow some but not much. I used a long blow...