Chevrolet Sonic misfire problems

Filed Jan 26, 2022 · Electrical, Engine · TX

After original P0011 engine code dealer bought from replaced VVT actuators, oil control solenoid, VCG, timing belt, water pump, antifreeze, idler and tensioner on 10/27 -11/21. Vehicle ran for one week and all thru Dec 2021 intermittently kept running rough and stalling and throwing P0011 code Camsgaft Position Sensor intake and P0301 cylinder 1 misfire. Smelled burning oil too. Replaced all separate throughout month -Camshaft position sensor intake, changed oil, spark plugs and now the ignition coil. Each time ran one day and code P0011 kept coming back. Running rough, poor gas mileage and stalls. Have extended warranty going back to dealer bought from.

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 Those components have since been replaced by myself and no more issues.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 Jan 30, 2020 · 35,000 miles · AE

Problem #1 got the car in 2016, after about a year the shifting sticks button got stuck and broke. Prevented me from changing gears or getting out of park. Had to call for it to be towed and buy a new stuck from dealership. Problem #2 began getting a check engine light about a few months after purchasing car in 2016 due to engine misfire, found out in 2020 this was due to the air vent tube under the hood being cracked. Both these issues are common with many consumers I have read

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 Sep 10, 2018 · Electrical, Engine · 47,000 miles · NJ

First issue was electrical issues (bad lights, unfunctioning controls, AC adapter would not give power, outside lightbulbs do not last, headlamp controls fell apart, mirror conrtrols fell off, vent controls fell apart. When electric window control stopps working and hisses and smokes when engine is turned on. I also have been shocked painfully when trying to get the AC adapter to work. Next came repair of the ignition switch.. I could not pass state inspection because my "check engine" light was on. In august 2017, car had engine misfire, which cost me repair on the fuel pump. A few days after that, the battery died and I replaced it. One week later,, it started to smoke under the hood and the car was overheating. Then a few hours later, electric was on and off but power to vechicle stopped.. This ended up being the serp. Main belt. Next came the ignition switch. (novembwr 2017) early 2018.. Ac adapter stopped working again, and it was replaced. A c stopped blowing cold air spring 2018, and within weeks, the window control failing again, I have had heat stroke twice. Window control unit smokes and hisses when I turn on engine. Window also cracked while driving 55mph. Plastic vents cracked outside therm fell off & plastic undercarriage cover ripped b4 aircond, followed by the fan. When I brought car in for airc, I was told I needed new rear brake pads and the radiator fan and compressor.. There is no therm for engine. Fixed only brakes. Car then began to overheat while in traffic. Replaced radiator fan 2 weeks later. . Still need new AC compressor. Window control began to fail again next. First time window conrol failed, battery died same night, and I had to get serp. Belt and new battery. New battery has already had to be jumped 3 times, and seems as though engine misfire is beginning again. Problems going uphill today.. Slow accelleration, unsteady fuel flow.

Filed Oct 17, 2017 · 40,100 miles · MA

Car has rough idle and when parked running the car it stalls out. Also after putting gas in the gas tank the car will not turn over to start. The check engine light is on now too. The car wants to stall at intersections and in traffic.

Filed Jan 8, 2017 · Airbags, Brakes · 40,000 miles · MI · crash · 1 injury

On 1/31/2016 a vehicle pulled out in front of me. The first and biggest issue was the airbag never went off and the seat belt tensioners did not lock the belts either. I went forward and hit my head on the steering wheel rendering me unconscious!!! Almost the whole front end had to be replaced e.g.: grill and front panel, left and right front quarter panels, radiator, both wheel wells, suspension on both sides and everything that goes with those plus a whole lot of other things like the radiator, coolant and washer tanks etc. Etc.... This was a full-frontal wreck and not a single airbag went off!!! Secondly are the ABS and traction control. The roads were a little slick so I had the tc on. When I hit my brakes all they did, have done since I bought the car, and continue to do to this day, is immediately lock up! I had zero control of my car. This car has, by far, the worst ABS system I have ever used. The tc is complete [xxx], too!!! Thirdly, every time I start the car the engine seems to misfire or something! It rattles and shakes the whole car, hard!!! After a few seconds it seems to find it's groove and idles normally. I have brought the car in to the local chevy dealership where I purchased the car to address these problems. All they tell me is they are design and/or manufacturing flaws. They said I can pay to fix these issues with my own money or wait and see if the issues become recalls. Which, according to my research, have not yet. To me, these are some pretty big safety issues the manufacturer should be addressing!!! And why aren't they????? I have photos of the accident, but can't seem to find them anywhere. I'll come back if I find them. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

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 Oct 27, 2016 · Engine, Transmission · 111,000 miles · FL

Car started misfiring when accelerating and would jerk and be very rough when idling but no engine light. Full tune up found that open valve cover gasket was damaged and that seals were plastic when they should've been rubber, this caused oil to enter the spark plug wells. Changed gasket and seals but problem persisted. Took to the dealership and was told that ignition switch in cylinder 1 was bad, this corrected the issue but now car has burning smell at times.

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.