1999 Mercury Sable 3.0 My heater is only blowing cold air. I changed the thermostat and flushed the heater core. When my engine is hot the in hose is hot and the out hose is cold coming out of the heater core. I cant check the heater control valve because I dont no where it is.
I hope you can help
Friday, January 19th, 2007 AT 6:14 PM