Heat won't work new thermostat blows cold air water leaking with air at heater coilboxunderthehoodisblowingwaterandair

As far as leaks go, a pressure test of your cooling system is needed to find out where the leak is originating from.This concern will need to be addressed before trying to check into the lack of heat. With the cooling system leak resolved, test for heat again. if you don't get the heat you're expecting inside the vehicle, the probable cause comes from one of two possible areas: 1 - The engine temperature is not getting hot enough. This can be due to a thermostat that is sticking open for too long. Testing of engine performance using a suitable diagnostic tool that will measure engine temperature is needed. 2 - Climate control concerns inside the vehicle are present. If you have a climate control concern, you can request heat, but the mechanisms that blend hot and cold air may not be working properly. This could mean that you don't get the heat you're asking for. Testing will need to be performed inside the vehicle with the climate control system to see what is going on. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops