Accent RB (2012+) :: Slight Hesitation - RPM Suddenly Jumps Down For A Second Then Comes Back Up


May 14, 2014

2012 Accent Hatchback. ~57k miles. (not yet done the 60k mile service)

So at about 1.4-1.7K rpm I hear a slight squeal and the engine's rpm suddenly jumps down for a second, and you can feel the car shake, then comes back up.

I was able to see it while idling, where the engine simply shook a little, like it's stuttering/sputtering and about to stall, but then immediately recovers and continues to idle normally until it happens again (not very often when in idle, usually more often when getting out of idle and slightly depressing the accelerator)

If I press the accelerator more or harder then I don't get any of it. I'm coming up the 60k mile service, and the schedule recommends inspecting and replacing the belt.

I am wondering if the belt slips on the alternator would you be getting similar symptoms or should I be looking elsewhere? I don't think this matters, but I'll mention it anyways, I'm about 1K miles overdue on an oil change. But I don't think 1k is that big of a deal.

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The car is difficult to drive. It shakes and surges and isn't pleasant to drive at all. These issues started happening very recently. The car ran great up until now. We've stopped driving it for the time being until we solve the problem.

We had the car serviced a few years ago and they changed the IAC and mentioned something about a gray wire that we should watch out for.

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The only way it fixes it self is when I pull over and shut off the car and then start it up again and I am fine. A friend at work said that I may have to have my transmission fluid checked and filled up.

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