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Car heater is blowing cold air.
on 2002 Buick Regal

Car is not overheating. No wet passenger floor. No smell. 1 hose coming thru the firewall is hot and 1 is cold. Blower is working.

Asked by for the 2002 Buick Regal
Your heater core needs to be flushed, the coolant flow is restricted, and heater core will not get hot for the heating system to work properly.
1 more answer
Your heater core needs to be flushed, the coolant flow is restricted, and heater core will not get hot for the heating system to work properly.