Question about 2003 Mitsubishi Galant

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My 2003 Mitsubishi Galant (V6) started to hesitate and die. It starts back up fine and will die again when I let off the gas or stop. It will run fine for a couple of months (and a few tanks of gas) and then start the process all over again.

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  • 331 Answers

It is your idle air control (IAC) motor. Its located on the bottom of the throttlebody. All you need to do to change it out is remove the air intake hose from the throttlebody, unplug the connector and remove 3 screws. But the part isn't cheap. I would suggest finding on online because at a local parts store it will be around $250

My 2003 Mitsubishi Galant (V6) - d4d6364.jpg

Posted on Oct 01, 2010

  • alex metro
    alex metro Oct 01, 2010

    Actually you should try cleaning the one you have before you buy one. Just remove it and use some electrical contact cleaner to clean it up. The stuff at your local parts store is probably Lectra-motive, its in a red spray can.

    Check the idle air control (IAC) motor operation sound.
    (1) Check that the engine coolant temperature is 20°C (68°F)
    or below.

    (2) Check that the operation sound of the IAC motor can be
    heard after the ignition is switched to the "ON" position (but
    without starting the engine).
    • An operation sound is heard.
    Q: Did you hear the operation sound?
    YES : Clean the throttle valve area


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