My car has no heat or a/c. The blower in the car is working fine, and the flap seems to switch in the dash from hot to cold, but only the outside temp air comes through on both. Can anyone tell me what the problem could be?
Does the A/C compressor engage when you turn it on? Might be the selector in the dash. Feel the heater hoses to be sure they are hot. Does th ecar have a heater control valve? If it does be sure that it works when selecting from inside the car