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If the heat and defrost in your 2008 Chevy Impala aren't working, it could be due to several issues. Common causes include low coolant levels, a malfunctioning thermostat, or a faulty heater core. Additionally, problems with the HVAC controls or blower motor can prevent warm air from circulating in the cabin. It's best to have a mechanic diagnose the issue to ensure proper repairs.

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4mo ago

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