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Rough idle at stop lights - Multiple dealerships no fix

22632 Views 27 Replies 15 Participants Last post by  Phil j
I've been having an issue with my Cruze idling rough when I come up to stop lights. The RPM's dive randomly to the point it nearly stalls (see video below). It doesn't do it at every stop it's completely random regardless of length of time driven. I've taken it to numerous dealership 5 times now and everyone says the same thing if it doesn't post a code we can't fix it (of course it won't do it when they are riding in the car.) Anybody have a suggestion?!45666&authkey=!AKWBTZfi1Y-K6CQ&ithint=video%2c.mp4

(that's not my car running like crap in the background)
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Whenever I have those symptoms with different cars it's usually a spark plug, wires, and/or distributor cap issue (Cruze has spark units so that's ruled out). Cheapest thing to check would be spark plugs and gap or just replace them
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