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Old 10-07-2013, 09:02 AM
rhandwor rhandwor is offline
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Re: 2003 impala overheating problem

Quote:
Originally Posted by dpuette View Post
Having the same problem with a twist. Flushed, replaced the coolant, replaced the thermostat, replaced the radiator cap. Red light comes on when I am going down hill and cuts off when I am going up hill. I turned heat on high in the car. When going down hill air is coming out cold. When going up hill air is coming out hot.
I would check the fan operation.
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