Idle engine for about 20 minutes until warm or until thermostat opens. Ensure coolant temperature is about 194 F (90 C).
Select vent mode. Move temperature lever to coldest temperature setting. Select high blower speed.
Air should exit instrument panel outlets and should be about the same temperature as outside air.
Move temperature lever to hottest temperature setting.
Air should get warmer if not open hood and check heater hoses if both hot
if not heater core is the problem and need to be flushed again and or replaced
if both hoses hot its blend door
let me know
Tuesday, December 14th, 2010 AT 1:20 AM