I have an 04 grand Prix GT. Has no heat and I can't
figure out why. We have replaced the thermostat,
blower motor resignator or resister can't
remember what it was called. Just replaced the
blower control module and still has no heat. Any
idea what it could or would be?
So the blower motor works? Blowing air? Otherwise make sure the air has ben purged from the cooling system. And if that has ben done then there is a HVAC blend door actuator that may be bad.
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