Three problems related to engine noise have been reported for the 2013 Chevrolet Sonic. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2013 Chevrolet Sonic based on all problems reported for the 2013 Sonic.
When the car is first started and turned off, the horn goes off each time. If parked but still running, the horn goes off every 2-3 minutes. When locking the car, it doesn't make any noise indicating it has been locked. When phone is plugged in, the music doesn't always work properly. There is a piece to one of the hoses that broke and is now making car run lean. When idling (at a red light or stop sign) the engine shakes vigorously and is harder to get back speed. When car is running and the hood is open, there is a hissing sound.
I purchased my car from a dealer, who set me up for an upside loan. Putting me into another chevy with now 2 car loans to pay off. The car has stalled on me at different times while owning it. There have been issues since shortly after purchasing it with acceleration. It jolts and jumps when trying to accelerate. The check engine light is one, sometimes it goes off, then will come back on. I have not taken it to the shop yet assuming it would be a huge expense for them to fix and find it. Took it to a private garage and they could not find the issue either. This car is crap, I owe twice as much as its worth and I do not know what to do with it. I drive an hour to work every day on the highway and I am terrified I am going to crash every single day. It happens on the highway, on the street. In the morning when it start up it jolts and sputters. If you use the heat, it smells like its burning and there is a high squealing noise coming from the passenger side.
2013 chevy Sonic loud vibration noise from engine bay area when vehicle is parked or in the drive position when stopped, it also occurs with or without a heavy load (meaning radio on/off, ac on/off). As a consumer I was told this is normal operation, normal operation would mean either at the time of purchase or something that arises after high mileage on the auto. Per tech notes "case 71-1211257889, advised a normal operating characteristic of 4 cylinder engine. Compared to similar vehicle made the same sound. Was able to deaden noise by applying pressure to front bumper. *** - tech comments: normal operating characteristic - internal".