2004 Buick Park Avenue 6 cyl Front Wheel Drive Automatic
2004 park avenue with climate control. Heater blows cold air. I have cleaned the cooling system and replaced the thermostat. After letting the car warm up, I noticed that the heater inlet hose was hot but the outlet hose was cold. Is there a shutoff or does the water circulate through the heater at all times? I'm not sure if the core is plugged or if it is a control problem.
Please help.
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Friday, November 20th, 2009 AT 3:40 PM