2013 Chevrolet Sonic: misfire or rough idle

Filed Dec 20, 2020 · Engine, Fuel system · 80,000 miles · WA

My 2013 chevy sonic developed ticking sound shortly after I bought it at 60000 miles. The ticking got worse over time and then check engine light came on. I scanned the codes and multiple four codes were found. P0171, p0496, p1101, and p2270. After doing some research it seemed to be that most cruze, sonic, and trax vehicles all had the same issues. I took it to the dealer for diagnostics and was informed the vehicle needed a new intake manifold, purge valve, pcv hose, and valve cover. They called the dealership to see if there were any recalls and the only one was the valve cover but would have to pay for diagnostics to see if they would cover it or not. The breather diaphragm in the valve cover goes bad due to a fault intake manifold on these vehicle models. There is a little orange gasket in the manifold that goes bad and causes the diaphragm to go out resulting in having to replace the entire system. The intake manifold not only causes ghat issue but causes the car to get jumpy at stops and stalling out. Have almost had a few people rear end me due to this. The purge valve goes out as well and when at the fuel pump the car will hesitate to crank or run at very low idle shutting off multiple times before it starts up and then runs rough until a decent amount of fuel has ran through the engine. The car would not get enough fuel when at stops or on highways and would also just lose fuel and cut the engine off. Those components have since been replaced by myself and no more issues. Chevy will not recall the parts that are causing the issues and therefore there is a safety issue when out on the highways.

Filed Apr 18, 2019 · Engine · 94,000 miles · GA

Takata recall - the engine has been misfiring this has also happen to someone else I know who has had the same vehicle. This is very unsafe and they don't have it as a recall yet but all of the dealership are aware of it. The vehicle jerks when your driving or when its parked. This is not the alternator or anything else I had that replaced and nothing was wrong with it and the same issue is still occurring. It a bad part they put in the engine and it neeeds to be recalled. It is unfair and not safe for customers with this issue. The vehicle jerks and when is does it it feels like it hesitates to drive while in drive mode. This has been happening for a couple of months it has just gotten worse and I am truly scared.

Filed Nov 4, 2016 · CA

Rough idle at stop and sluggish propulsion while driving to where it can become dangerous while merging onto freeway traffic and busy city streets. Upon further investigation on online forums, there is a mass issue with the air intake tube/hose from air box to throttle body. The issue being major cracking or holes in the tube/hose causing too much airflow. This cracking happens sometimes before or after the o2 sensor. The cracking I found happened to be after my o2 sensor, therefore not even triggering the check engine system to activate.

Filed Jul 15, 2016 · Engine, Fuel system · 200,000 miles · CA

Gm part number 95027313 outlet duct connecting the air box to the throttle body has shredded in 30,000 miles of use. This problem causes the engine to run lean (odb2 error code p0171) resulting in significantly reduced fuel economy, poor acceleration, rough idle, and potential failures to a number of costly sensors and components, as well as allowing dirty, un-filtered directly into the engine. A quick google search reveals 26,000 search results including forums and message boards where countless sonic owners report the same issue. This is a widespread product defect and gm needs to provide a repair solution for owners of this model vehicle. The part had deteriorated to the point, where the check engine light illuminated. The consumer noticed the fuel economy of the vehicle dropping steadily from the advertised 29/city/40 highway to an average of about 25 mpg highway.

Filed May 27, 2014 · Engine · 200 miles · GA

When in park, the engine idles very roughly. As a result of the rough idle, the fuel economy is not as good as it is supposed to be. Twice, the car has stopped running when at a stop sign/traffic light. When I reported to my dealer, the dealer informed me there was a tsb on the issue and the solution was to run tier 1 gasoline in the vehicle. The dealer indicated that gm does not have a "fix" for the problem. The car has the 1.8 l gasoline engine with six speed automatic transmission.