Six problems related to engine noise have been reported for the 2015 Hyundai Sonata. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2015 Hyundai Sonata based on all problems reported for the 2015 Sonata.
2015 Sonata hydunai engine making noise , will not drive pass 40 mph. Engine is shaking and knocking and the engine light is on. The hydunai dealership doesn't want to consider it's not under the engine recall here in texarkana, texas.
I bought my 2015 Hyundai Sonata brand new. Today (Mar 22), I made a right turn to a ramp into my company site. Speed was about 10 to 15 mph. All the sudden, I heard a laud engine revving sound. I have to let go my gas pedal, waited couple seconds and then slowly stepped on the gas pedal to move the car. It almost like the gear box was not engaging all the sudden and the car speed stalled. This would have been really dangerous when driving on a highway. The government should investigate the similar cases and make the manufacturer for a repair/recall.
When excelerationhe care makes a noise, sounds like shavings of metal in engine some days are worse then others. I've taken it to two different Hyundai dealers and one heard it and said they have no idea what it is and have others with same problem and the other dealer said they didn't hear anything. My husband has bad hearing but one day he drove it to work and said he finally heard it as well. I do notice that the pick up is hesitant making it hard to stay in flow with the traffic at times. My gas per milage performance has decreased some what as well which.
While stationary I noticed the car's engine sounded like it was ticking. I drove off about 35 miles per hour when my 2015 Hyundai Sonata limited stalled while driving. The car started shaking while attempting to speed up to keep the vehicle running. I had my passenger who witnessed the incident and we recorded using the cell phone to record the incident. The engine light came on then off again. Eventually it cut off completely. I had to restart and the speed of the vehicle would not go past 50 mph. The engine shook the entire car and sounded like the gears did not want to shift. The dealer was not able to replicate the issue or find any codes on their system. This same thing happen to my 2011 Sonata in which Hyundai refuse to pay in a class action lawsuit because I traded out of the vehicle a year after they replaced the engine. The engine also stalled while traveling at highway speed and started smelling like an electrical fire while smoke came from under the engine. I had to have it towed back to the dealership.
I have the limited edition, 2. 0l turbocharged. When the engine is cold, and if you tip-in aggressively, you can hear some screeching sound above 5000 rpm of the engine, easily achieved in second or third gear. The turbo is designed by Mitsubishi and I knew someone who works there. After listening the sound, he indicated it is a case of turbocharger imbalance. I am not sure if it a design issue or mine is just a one off case. I have contacted Hyundai last week, haven't gotten any response yet. I believe the turbo has to be replaced. If it not resolved, over a period of time due to excessive vibration, the journal bearing may fail and the turbo could blast. If anyone has the same issue, please take it seriously.
2015 Hyundai Sonata 2t - slow acceleration; car will continue to move when foot on break; loud engine noise; engine light always on. Took car to dealer they said it was a recall issue that they repaired. Drove car two days engine light came back on. Now dealer states they are waiting for parts to come in to fix.