Normal Air Conditioning works just fine but when I switch to Max A/C It blows for a few Minutes then Stops Blowing through the vents, i still hear the fan blower when this happends what could it be?

 

Likely a vacuum leak at the blend vent door.

Try this:

1. Under the hood, on the passenger side, near the firewall, is a round silvery looking thing with an arm on it. This is the vacuum motor that moves the blend air door. There is a white vacuum line attached to it (or should be). The vacuum line looks like a wire, as it is plastic, but it is a vacuum line.
2. Grab the vacuum line and pinch it, it will most likely fall apart in your fingers.
3. Go to the auto parts store and get a couple of feet of rubber vacuum line.
4. Remove the vacuum line off the vacuum motor (the silvery thing). Use a knife to cut the connector off it, it might be stuck really well and you don't want to break the connector part of the motor.
5. Trace the vacuum line back toward the firewall and untape the loom that the line goes into.
6. Under the loom, the white vacuum line will probably be fine, put a little dish soap over the white plastic line and slip the new rubber vacuum line over it as far as you can. (an inch or two).
7. Push the other end of the line over the connector tube of the vacuum motor.
8. Tape up the loom
9. Should be good to go!