ok, a friend of mine has a 94 gt. her a/c was not working right. it would only blow on high, and would only blow out of the vents on top of the dash. i remembered the problem i had with mine (vacuum line leak) and fixed the dash vent problem. so now, all of the vents work normally, but the a/c doesnt blow at all onless it is on high. does anyone have a clue what this might be?