Originally Posted by Jerry Bransford
Also, air often blows up that hose while you're driving and forces condensation from the a/c to back up into the tube and overflow into the passenger compartment.
I'd both clean out the hose and attach a short 90 degree angle piece to it which will eliminate air flow from forcing water back up the tube. That latter issue is pretty common and is cured with that short 90 degree rubber elbow.
Thanks for all your help guys!!
Problem fixed. I ran a thin piece of flexible wire into the drain hole, from inside the engine compartment, through the fire wall into the housing unit under the dash, then I made a make shift reducer hooking it up to my shop vac and held it to the hole in the firewall, hoping to pull whatever was making the blockage out of the way.
After I did that I turned on the ac for a while and sure enough water started dripping onto the ground thru the hole. I ran it for over an hour to make sure it would continue to work right, it did.
I'll try that also may also prevent future problems!!