I had my thermostat replaced and coolant checked and ran a computer check and still have a problem with it heating up.
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2001 Dodge Ram 2500 Question: Why does my heater not work in cold weather ?
Answer #1dandd April 09, 2009, 14:20Master
What exactly is the problem? What does it do or not do? I mean does the defroster work? Does the A/C still work? If nothing works then it could be a climate control computer problem. If they work, it could be a plugged heater core.
Answer #2Visitor, November 13, 2010, 17:27
if its not getting hot and the heater core is take both heater hoses from your motor and flush your heater core with the water hose