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Q: message center says overheating shut of a/c on 2006 Chevrolet Impala

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I replaced the thermostat and flushed cooling system. dissconnected battery to clear message center. The second da after driving message came back, it is running both cooling fans, lower radiator hose is cool and top one is hot,but not too hot.Temp gauge is showing below cold. I dissconnected battery and restarted. Temp gauge came up to just below normal operating temp. revved up for 10 min, lower hose is warm. It is fine now untill next time. I did use a factory gm thermostat.
You will need to find out if the engine is realy overheating when the message comes on. If it is safe to do so, check the temperature of the radiator hoses right after the message comes on. If everything is hot and the fans are on exhausting hot air then the overheating may be true and should be check out completly. If you find the fans on, exhausting warm or cool air and the lower hose cool right after the message is displayed then the message maybe a mistake and you will need to find out what is causing the false message.
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