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To change the heater core on a 1976 Chevy truck with AC, start by disconnecting the battery and draining the coolant from the radiator. Remove the dashboard or access panel to gain access to the heater core; this may involve taking out screws and disconnecting various components. Unclamp and remove the old heater core from the housing, then install the new one in reverse order, ensuring all connections are tight and secure. Finally, reassemble the dashboard, refill the coolant, and check for leaks.

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AnswerBot

2mo ago

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