If there is a heater valve, it will be on one of the heater core hoses. What I need you to check is this. With the engine hot and running turn the heater on high and feel both heater core hoses. Are they both hot? Also, is the coolant full and the engine running at a normal operating temp?
Let me know what you find.
Tuesday, January 20th, 2009 AT 9:00 PM