My 2005 avalanche heater blows cold air ,but temp gauge reads 210 degrees how do I fix it

Asked by Nov 01, 2015 at 06:20 AM about the 2005 Chevrolet Avalanche 1500 Z71 4WD

Question type: Maintenance & Repair

1 Answer

79,215

There is a actuator module under the dash that controls the vent systems, (doors) that may be bad only allowing the outside air to come in.

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