1999 Concord Slight Hesitation at Idle

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01-27-2009 | 10:06 AM

tn09

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Joined: Jan 2009

Posts: 1

1999 Concord Slight Hesitation at Idle

I have a 1999 Concord with 3.2 motor. My problem is with a slight hesitation at idle. It only hesitates when the AC/Heater is engaged, more so with AC running. I would get a slight spike in RPM, maybe around 1 to 2 hundred drop. Almost like a hic-cup. The problem is not very consistent. Maybe it will happen about one to two time a minute.

There is no engine check light. My local shop try scanning for trouble code, but he is getting nothing. Other than this annoying issue, the car runs fine with 106K on the odometer. It already had plugs and wires replaced at 100K service, plus a few coils were replaced at around 75K miles. The coils were replaced because of missed-fire issue.

Was going to take it in to a dealer to see if they can help isolate the issue, but since there is no trouble code I maybe wasting my time and money.