No heat AGAIN.....HELP!!!
3rd time sent it back they put in NEW heater core and radiator.....Heat worked for 3 weeks......AGAIN NO HEAT
Sent it back for the 4th time, what can it be...I have brand new thermostat,radiator and heater core, and all hoses are new...So other then that they said they are contacting GM.
PLEASE HELP!!!


