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Heating AC and Engine Cooling
Heater Cores and Blower Fans
Car Heaters

How do you fix a car heater on a 1991 Chevy Corsica that only blows cold air and the thermostat is working right?


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Wiki User
2015-07-15 21:37:08
2015-07-15 21:37:08

There maybe air in your collant system and/or you need to flush and clean your heater core. Check your rad cap it may not be holding the pressure right and lettting air in,also check the heat regulator and the door might need to be reset.

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cost to replace heater core 1994 corsica

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A Haynes or chiltons manual has the how to. Or do a search for a forum for Chevy corsica specific

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Drain the water from your 1990 Chevy Corsica cooling system. Remove the heater core water supply hoses. Remove the heater core retaining bolts. Reverse the process to install the new heater core.

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Its located in the center of the vehicle below the dash.................


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