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Mitsubishi Galant Forum : “Engine Surge at Idle”

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dtl504
09/01/2009, 8:37AM
About: 2002 Mitsubishi Galant ES
Engine Surge at Idle

Car runs fine once she is going but at idle the engine seems to surge/buck forward when idling at a stop sign or red light.

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Rishi75
09/02/2009, 9:08AM

It could be a few things... the first thing you should do is change your spark plugs, if that isn't it it could be a dirty mas air flow sensor which you can clean or a bad air filter... if its not any of those it might be your idle air control or a few other things. Try the first three and see how it goes.

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Matt2408
09/05/2009, 3:54PM

Might even be your Throttle Position Sensor, but just go down the line with the least expensive fixes first like Rishi recommended and troubleshoot those one at a time until all is well again.

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