Question about 1999 Mitsubishi Galant

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2003 Mitsubishi Galant Heater not working

Checked the heater fuse, ok. Checked radiator fluid to make sure it was full, ok. Played withe the thermostat knob can hear the ducts opening when moving the knob. Heater stopped working then started working the next day. Can you give me some guidance?

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There is an electric motor that turns heater core on and off. It's located under the dash to the left of the glove box. Some disassembly required. The part will cost about $120 to $180. part number is #MR958603.

Posted on Mar 17, 2010

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The blower motor may need to be replaced.

Posted on Mar 02, 2010

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ok here we go and you aren't going to believe it...
I replaced the thermostat step one

I noticed that I had a small leak at the engine side of upper hose fixed that by taking it off and cleaning it and putting the hose back on Step two

then while refilling the reservoir with coolant i found that the hose that was supposed to be in the fluid was curled up on top and not sticking down in the fluid where it should be.
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I really think that the hose in the reservoir not being in the right place and pulling air into the system instead of coolant is the real culprit of this drama, but i replaced the thermostat to be safe.

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