Why does my car AC only work when my tank is full?

Question

The AC in my car only works when my tank is full, once my fuel is 3/4 full my AC stops working. Does any one know why that is? Is it a fuse or a hose please give me input

Answer 1

I agree with the other answer. Your ac compressor runs off of your belt. That spins while the engine is running no matter what. Your fuel level has no bearing on it. Your compressor is probably just going out.

Answer 2

kyle may be correct here. the A/C and fuel are connected only by the engine needing to be running! there is however 1 additional component joins both, electricity. your car likely has an electrical fuel pump and the a/c is electrical. fuses are devises that blow out like a filement for an incandesent lamp if they detect an overload or short. a breaker resets the power either manually or on its own. a hose cant as both systems are completely seperate. the question is if its shutting off is it due to a lack of freon, a defective presure switch, electrical a/c fan not engaging, engine getting hotter than permissable and tripping the presure switch to cut out the a/c, thermal temp controls missreading? I doubt the fuel tank is actually the issue just coincidental.

Answer 3

UMMM... NO. I see absolutely NO logical explanation for that. You have an intermittent AC problem and the gas level is just a coincidence