Quote:
Originally Posted by witheringsanity
sorry for the thread necro, but did you guys ever figure this one out? i have a 2013 LFX with only 5800 miles on it, and it's been doing this for awhile. since i hardly ever drive the car i haven't yet bothered to bring it to the dealer to look at it, but it's exactly as you describe. when the car is stopped and idling, it will occasionally drop RPM from about 600 to 400, shakes a litte and sounds like it's gonna die, then spike rpm to 1200, then drop back to 500 steady. i'm fine with this if it isn't hurting the car, but feeling like your car is gonna die at a stoplight is really annoying.
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I realize how displeasing it can be when faced with an RPMs concern like this witheringsanity, and though you're seeking thoughts and opinions, I would be happy to communicate this situation with the designated Customer Experience Manager at your preferred dealer if you feel an official diagnosis is necessary. Feel free to message us privately if you'd like to proceed, or discuss this situation further.
William R.
Chevrolet Customer Care