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Q:

My heater blows cool air out on diver side and at the same time it also blows - on 1997 Buick Century

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- hot air out on the passenger side. ( Note:I have replaced the delco control unit model # 16244754 because all of the back ground lights were out). Now with the new /used delco control unit model # 16244754 I have all of the back ground lights working, but I still have the same problem as before I replaced control unit on the bright side I have lights.
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