Wondering if anybody can help, both heat and a/c work fine they just don't blow out of the vents very well. Everything seems to work as far as switching between defrost, floor or vents but you can barely feel air blowing out any vent. I have messed around under the dash a little and all the duct work seems to be intact and I don't feel air leeking out anywhere. Thanks

 

I could be that the blend door is not working properly or that something is blocking the air way, I would take out the blower motor first and stick my hand in there to see if theres any leafs stuck in there. Also check the blower motor and see if all speeds are working if so then its most likely a door in side the heater box.