Question about 2003 Mitsubishi Galant

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Hi my heater on my mitsubishi galant 03 heater isnt working before this happend we were hearing a clicking noise when we turned it to heat.

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Same problem I had for over a year...A mechanic might try to tell you it is simply the heater core (don't fall for it). There is a control under the dash that operates the temperature gauge. Basically that control is gone and must be replaced before you do have a heater core problem (which you will know, usually once your car overheats or you smell antifreeze). I know money is tough but i think price ranges on this to be done as more manual labor is required than replacing the actual part itself. You are looking at roughly $300.00.

Posted on Aug 01, 2009

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I had the exact same problem, yes it was the heater control valve, the repair was 285.00. The tech that replaced it told me it is a common problem for the Galant. He said that if you keep your temp selector on either all hot or all cold that it keeps constant pressure on the plastic gear teeth in the valve. As they break off one by one you begin to hear that clicking noise as the dont catch. When you finally break off the last one it stops working.

According to him if you always leave the dial at least one notch from fully hot or fully cold you will not experience a failure of the switch

Posted on Aug 22, 2010

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Mine did the same thing, it was the heater motor valve.

Posted on Mar 17, 2010

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Your heater valve motor may be bad

Posted on Jul 27, 2009

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1 Answer

My mitsubishi galant temp control lever won't switch to heat


that happened to me the heater core went out ive read alot of different things about 03 galants most of them have the same problem it started with a grinding noise turning the temp contol, its actually the heater control motor value it causes the heater core to go out

Dec 27, 2012 | 2003 Mitsubishi Galant

1 Answer

I have a 2002 Galant. Air works fine, but when I switch cold/hot switch to hot it does not work. Once in awhile when the switch is turned to hot you can hear clicking noise. Like a door is closing or...


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. I saved money by purchasing it on line. It is a stocking part at most Mitsubishi dealers. Once you pull the glove box out and remove the bottom half of the dash all the way across, you should be able to gain access to the motor to replace it. Caution: if you do not put everything back in correctly and tie/tape it all back down carefully in the correct places you will have lots of under the dash noises when you are done.

Oct 20, 2010 | 2002 Mitsubishi Galant

2 Answers

No heat on a 2003 galant. Could hear grinding


Call dealer service rep explain noise and I'll bet he suggests your heater control valve motor has failed. I just replaced mine 3 months ago. Same sympthoms. I could only get motor from dealer. and Had someone in my area who specializes in auto a/c work install it. It came out to be about $300. But you have to have heat!

Sep 30, 2009 | 2003 Mitsubishi Galant

2 Answers

Heat in my 03 galant isnt working. Was making a grinding noise when switched from hot or cold months before the no heat


sounds like the blend door motor has failed blend door wont move and the plastic gear is bad , probablly not something you want to try to fix yourself its a pain lol good luck autodoc

Aug 25, 2009 | 2003 Mitsubishi Galant

2 Answers

Overheating and heater blowing cold air.


Heres the answer for the clicking sound

I had the exact same problem, yes it was the heater control valve, the repair was 285.00. The tech that replaced it told me it is a common problem for the Galant. He said that if you keep your temp selector on either all hot or all cold that it keeps constant pressure on the plastic gear teeth in the valve. As they break off one by one you begin to hear that clicking noise as the dont catch. When you finally break off the last one it stops working.

According to him if you always leave the dial at least one notch from fully hot or fully cold you will not experience a failure of the switch

Mar 24, 2009 | 2003 Mitsubishi Galant

1 Answer

2002 mitsubishi heater not working


approx. $200-250 - takes less than an hour to replace if that part is the problem

Jan 09, 2009 | 2003 Mitsubishi Galant

2 Answers

02 galant heater doesnt work


you are correct - its called a heater control module,mounted on heater case under dash - i believe it is only available at dealers,but i could be wrong

Jan 06, 2009 | 2002 Mitsubishi Galant

3 Answers

Heater on 02 galant


it is the heater control valve that is located next to your glove box the control valve has a motor atached to it take your glove box out and the lower part of the dash
then you can get to the part to replace it (Dealer item only ) around $150.00

Sep 10, 2008 | 2002 Mitsubishi Galant

1 Answer

Temp control problem


I just repaired my 02 Galant with same problem. I removed the heater control box and disassembled and applied 12 volts dc and verified motor was ok. Then attached the plug back on and checked in car still not moving. Removed the screw holding the temp. control and cleaned contacts and applied pro-gold contact cleaner and preserve re-assembled and heater works like a chame. Saved 400-500 bucks and we have heat. About 2 hours labor to remove bottom part of dash and troubleshoot.

Jul 03, 2008 | 2002 Mitsubishi Galant

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