I have a 2002 Chevy Suburban 1500 LT with a 5.3 engine. The AC compressor is less than two years old. Here's the problem. The vehicle has dual air which works fine all throughout the vehicle besides the front vents. The air barely blows and the computer controlled climate gauges isn't accurate. If the position **** is on the floor then the vent will barely blow to the face and vice versa. Can anyone tell me what it might be.