But again, vacuum would be drawing in and not blowing out. What causes my 2015 chevy cruze rough idle check engine light to come on? Okay So recently my chevrolet Cruze 2015 LT gave Check Engine Light and was having rough idle. Most of the time the culprit is going to be the ignition system, although there are a myriad of other causes. Search Any Vehicle History using our Free VIN Check and Free Vehicle History. Rough idle and check engine light. Also please check out the statistics and reliability analysis of Chevrolet Cruze based on all problems reported for the Cruze. An erratic idle can be caused by a vacuum leak, or an idle air control valve. Charles A. April 10, 2020 171 Views 1 Answer Brian M. answered on April 10, 2020 the chevy cruze rough idle no check engine light is on because of a vacuum leak or a faulty ignition coil. So i went to the dealership and they diagnosed that the PCV Valve had a vaccum leak so i guess the replaced the whole PCV valve. The most recently reported issues are listed below. The 2014 Chevrolet Cruze has 2 problems reported for rough idle and stalling. Also, the coolant temp is normal now as well. Stays on. My 2012 chevy cruze has a rough idle. Every now and then at a stop, the car will get a jumpy rough idle. Chevy Cruze Rough Idle Causes. I'm at the repair shop waiting to see what they tell me - Answered by a verified Chevy Mechanic I got a 2011 Cruze Eco 1.4t, with 50k miles on, everything stock, save for the tires, and transmission oil change. We’ll cover the most common causes of rough idle below. Chevrolet Cruze owners have reported 79 problems related to check engine light on (under the engine and engine cooling category). 2012 cruze. 1) Enter Any VIN with Free Preview 2) Full VIN Reports Are Now Free. Anyway, it runs mostly fine, save for idle rpm occasionally drops below the standard 800rpm. Why is my chevy cruze rough idle no check engine light on? Sometimes it's so bad the car will lurch like the engine has a misfire, or the transmission is trying to grip or something. On July 1, 2018 I started having issues with my 2012 Chevy Cruze. Hopefully, the check engine light is on. While there are a variety of reasons your Chevrolet Cruze has a rough idle, the most common 3 are a vacuum leak, an issue with the spark plugs, or a problem with the ignition coil. Average failure mileage is 47,900 miles. Michael T. April 10, 2020 97 Views 1 Answer Keith S. answered on April 10, 2020 if you experience a rough idle with a concurring check engine light on in your 2015 chevy cruze, you may be dealing with a serious vacuum leak, faulty spark plugs or ignition coils. When it does, it's like the engine is … Going for brake pads soon as well. I have a 2015 chevy cruze that has a chec engine light on. When one or more of these variables is off it can lead to a rough idling condition. Check engine light is off and is running normal. 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