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There is not one. The Heater core has Full flow all the time.

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โˆ™ 2006-11-30 02:27:10
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Q: Where do you find the heater control valve in a 1990 Corsica?
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How do you replace the heater core on a 1990 Chevy Corsica?

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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What is wrong with a 1990 Mazda MX6 when no warm air blows out of heater or defrost vents?

the water control vale could be broken or have a broken vacuum line to the valve. If it is cable operated valve the cable could be broken or jamed. the heater core could be pluged

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Why is the heating on a G20 1990 Chevy Van not working?

Personally I do not know about a G20 1990 Chevy Van but the basics of heating are, the thermostat, heater control valve, heater fan and heater matrix. Does the van overheat at all, engine wise? Could be possible the system just needs a flush out. When you turn the heating dial (presuming it is a dial) you should hear a clunk which normally indicates the heater control valve switching over. Other than that, I've said all I can. Hope to be of some help, hope you get it sorted out.

Why is there no heat in 1990 accord ex?

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Your 1990 ford ranger has little heat?

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How do you replace the water pump on a 1990 Chevy Corsica 2.2L?

Where is the Water Pump located and how do you replace it on a 1990 Chevy Corsica?

Where is the idle air control valve located on 1990 ford escort lx?

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Why does your 1990 GNC vendura not idle correctly?

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Any auto junkyard should be able to help you.

Where is the TCC solenoid located on a 1990 Chevy Corsica 3.1 engine transmission?

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The heater just quit in my 1990 acura integra It was working fine until recently when it just quit completely Any suggestions?

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