heater blows cold air when at idle even when temp is at normal on my 2010 buick lucerne

Asked by Feb 09, 2016 at 08:48 AM about the 2010 Buick Lucerne CXL Premium

Question type: Maintenance & Repair

2 Answers

37,965

Make sure the coolant level is full, and there is coolant in the reservoir at the proper level.

37,965

If all is good there with the coolant, then there is a blend door actuator under the dash that controls temperature that may be bad.

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