My 2001 Chevrolet Express 1500 air volume does not seem to be blowing as hard as it should. The air is cold and I can switch the air speed to each interval setting, but the volume of air is not coming out as hard as is should. You can here the motor and basically, when switched to high, the air feels like it would on low, you h ave to put your ggabd up to the vent to feel the air coming out.

thank you!

Try checking your blower fan for debris such as old receipts, tissues, chipmunk nests (I've seen it) and if anything pull it all out. Also check the cabin filter if applicable.

In addition to what 77Nova said, also check fro debris in front of the evaporator fins....