07 A/C Restriced airflow

Just starting to try to narrow down why my A/C doesnt seem to blow very hard, its cold enough, its just the flow of air doesn't seem that strong.
First place im going to check, cabin filter..
then ?
HAs anyone had this issue and any success in fxing it?

 

Flow of air is the same no matter what mode?? Defrost, floor, Vent??
Cab filter ok? Maybe evaporator plugged up with dirt, debris....
Fan also works on all speeds?...
I work as a diesel mechanic on Semi tractors and have encountered
many cab filters plugged causing low air flow issues.
Remove cab filter and run AC and recheck air flow, better? same?

 

Only one speed? Is there a chance the fan resistor needs replaced?

 

Foam liners from inside the dash coming unglued and blocking flaps or ducts. :-/

 

Well, pretty embarrassed but this is what i found:
http://imgur.com/a/RUZJK
I cleaned filter with a compressor and brush and then washed it. After it dried i reinstalled it until the new one arrives form Amazon.
A/C is blowing at least twice as hard...

 

I have a similar issue. Just got the truck detailed, and now the flow from the vents is under half what it was prior. And there is a high pitch noise when the fan is on. Louder at each higher setting. Cabin filter is clean.
Ideas?

 

It seems the blower motor is going bad