Four problems related to engine rattling and whining sounds have been reported for the 2011 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2011 Hyundai Sonata based on all problems reported for the 2011 Sonata.
Well, very simply I was merging onto a parkway and pushing down on the accelerator, car was speeding up then I noticed that it seemed like I wasn't getting any acceleration. Looked at the dashboard and saw that it seemed all the lights were on and realized that the engine had shut itself down. Pulled off to the shoulder and tried to restart it (head kind of a whirring noise), but it wouldn't start.
In November 2018, we had a rattling noise during low speeds, which turned out to be a problem with the engine (engine seized up during warm up inspection by mechanic). The engine was replaced for free due to an extended warranty that was part of a recall and settlement agreement with Hyundai. In February 2019, the check engine light came on, which was for a damaged catalytic converter and cost over $2000 to replace. Last month, we received a recall notice from Hyundai stating " Hyundai is conducting a safety recall in the united states to confirm the high pressure fuel pipe was properly connected by Hyundai dealers to the high-pressure fuel pump outlet when the engine was replaced under recalls 132 and 162. " we have an appointment scheduled for this service. There is a new recall for other kia and Hyundai models that include the catalytic converter, but it has not been included for our model year.
While driving on highway 91w, vehicle began to make a very loud rattling noise from engine. All dashboard lighting began to flash, then vehicle shut off. I managed to stop in an emergency section of highway. The vehicle electrical components turned on but not the engine. I shut off the vehicle completely, called towing service, & while speaking to the agent I noticed smoke coming out from the engine and then from inside dashboard. Fire flames then immediately began to come out from the front driver-side engine. I exited the vehicle through the passenger side door, crossed the ramp lane, & watched the entire front end vehicle completely engulfed in flames. The city of riverside fire department put out the fire with the assistance of chp.
I am having trouble starting and completely shutting my car down. When I hit the button to start it I get a rattle noise and the the engine doesn't turn over. When I try to shut it off the display in the car will tell me to shift to park when already in park and the radio will not shut off. I have to re-start the car and move the shift lever from park to drive and back to get it to shut down. This goes on several times some days. Also when I'm driving in automatic, the car will suddenly go into manual first gear and I will have to shift over to manual and back to auto to put it in drive. I had a recall for shift lever problems before but I think there is more to the problem then what they are fixing. This car seems to have many electrical problems. My hvac also has quit working while driving and had to shut the car down before it would work again.