Why does my A/C blows cold on passenger side, hot on drivers side.

If heat is not blowing out on the passenger side vents of your vehicle, your should check the hoses on the firewall under the hood after the vehicle has warmed up. If both hoses are hot, that excludes thermostat and heater core issues. The next step is to use a code scanner to diagnose heater control problems.www.lightdeal.co.uk

One of your blend motors have failed and needs to be replaced, don't be surprised to pay over $500 just for the part