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Sounds like the Thermostat may be stuck in the open position. Hurry and replace because this condition will cause your water pump to fail shortly after. Cold air was my first sign and because I didn't replace it, I'm now replacing the thermostat, water pump, timing belt and balance shaft belt(because they got wet when the pump went out). $250.00 doing it myself, approximately $670.00 at the dealer.

I have an 03 Galant and when it started blowing cold air it was because of a defective cut off valve in the metal heater line just outside of the heater core. The design of the A/C and heater system places them together requiring that hot water not flow the heater is not in use. It is located next to the glove compartment and will require the removal of the dash pad.

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โˆ™ 2010-01-20 02:05:52
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Q: Why does a 2003 Mitsubishi Galant blow cold air?
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