Yesterday my AC ran for 3 hours constant on the way home from a car meet and when I got back into town there was water build up in the squirrel cage (Blower Fan) and condensation all over the air ducting inside the car. Does anybody what would cause this, also drain hose was perfectly clear.

 

I was going to suggest the hose is clear, is there any condensation leaving the hose? maybe theres something blocking it from filtering out the hose.?

 

So there is not condensation exiting through the hose for some reason. Where would it have gotten plugged?

 

The hose is where condensation should drain. Remove the hose and gently probe the opening. You have a blockage.

 

I put my car on a lift today and blew air through the hose and it cleared the blockage. Thank you guys for the help.

 

Your welcome. Don't park under trees, and use "fresh air" setting whenever possible. If it starts to smell, pour a cup of laundry bleach into the outside air intake.

 

Pouring bleach down the outside air intake doesn't damage any of the components in the system?
Personally I'd be a little skeptical of doing so, but it sounds like you've done it before I'd guess?

 

Water goes into that intake every time you drive in the rain or wash your car. Bleach is a cheap way to kill mold. If you want to do a proper cleaning. Disassemble the blower box, and give it a complete cleaning.
http://www.ehow.com/how_2073997_get-rid-car-ac-odor.html