Cadillac Repair: caddy heat, coolant level, frezze

Question
i can get heat only after i  add anti frezze then only little heat

Answer
Hi James, Since the coolant keeps going down then you need to find out where it is going. If the coolant level is up and still no heat then you might have a thermostat that is opening too soon or stuck open. Try replacing it first and see what happens. If you need more help then get back to me with what changes happened. Bill