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Why does no air come out of the vents on an 01 GMC Sierra when the fan turns the freon fully charged and the motor and squirrel cage are both working fine?
Wiki User
∙ 16y ago
If you get air flow to the defrost area -
Check for a vacuum leak either under hood or under dash
Check the operation of the vacuum operated motors under dash
Check the selector switch If no air flow to defrost - check for a plugged evaporator - remove blower motor and look or feel around
Wiki User
∙ 16y ago
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