My 2006 honda gx has been having odd issues lately, it will idle fine all the time in drive and have no issues but then randomly (ever 30ish seconds) in park the engine willight idle down and shake the car and the idle back up to normal and it will keep doing this. Any ideas on fixes? It has newer ngk iridium plugs with probably 2500 miles on it. The cars at 175k
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2006 Civic gx irratic idle
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I think you are correct about the A/C. There is some sort of module in the car that had something to do with the A/C and/or the alternator output. It would adjust the idle speed as required. You are challenging my memory but I had the same problem on a 2006 GX years ago. It was fixed by replacing that module whatever it was. So, if turning off idle loads (like the A/C) corrects the problem, time to see the dealer for a diagnosis.
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Originally posted by siai47 View PostI think you are correct about the A/C. There is some sort of module in the car that had something to do with the A/C and/or the alternator output. It would adjust the idle speed as required. You are challenging my memory but I had the same problem on a 2006 GX years ago. It was fixed by replacing that module whatever it was. So, if turning off idle loads (like the A/C) corrects the problem, time to see the dealer for a diagnosis.
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