2011 Hyundai Elantra: sudden loss of power

Filed Jan 9, 2023 · Engine · NC

Had oil changed at Take 5 recently as always do. 2 weeks later car cut off 3 times in traffic. Engine light came on. Car started to lose power/acceleration and engine began to make a ticking/knocking sound. I checked the oil and none was in it. I added 4 quarts to see would that help. It did not.

Filed Oct 13, 2022 · Acceleration, Engine · SC

My car stalls while in motion without warning. While driving the vehicle will randomly speed up and rpm will fly up without command. I also experience a lot of engine power loss randomly the vehicle will bog and be slow. Occasionally when I press on the accelerator I can almost go to the floor with no response from the vehicle. Speed acceleration response is delayed approximately 30 seconds occasionally. Uncommanded acceleration and random stalling when vehicle is in motion has been a big safety risk for me. This issue has been ongoing for awhile. This issue has occurred countless times so it’s very frequent. This complaint is in compliance with the current open investigation regarding the throttle control system vulnerabilities. the federal safety agency Action Number: DP21003

Filed Oct 6, 2022 · Steering · 73,000 miles · NJ

The contact owns a 2011 Hyundai Elantra. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of power steering assist. The vehicle was taken to the dealer where it was diagnosed that the steering coupler needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and a case was filed. The failure mileage was approximately 73,000.

Filed Jan 11, 2020 · Electrical, Engine · 45,000 miles · ID

Car will lose power while driving, on occasion it can be jumped / restarted, but it will suddenly lose power again. Have towed it 6 times in 5 months. Now I'm looking for an entirely new engine. Side note: you can't put the car in neutral to tow it if there is no power, so you have to hope jumper cables will get it enough power to put the car in neutral. No manual steering either, so we had to use a tow truck several times since you couldn't turn corners manually at all the steering wheel just locks, even with the key in the ignition.

Filed Dec 14, 2018 · Acceleration, Driver assistance · 125,200 miles · KY

Tl* the contact owns a 2011 hyundai elantra. While driving, the electronic stability control (ESC) indicator illuminated. The contact stated that the accelerator sensor was causing the vehicle to lose power for approximately three seconds. The contact depressed the accelerator pedal again and the vehicle operated normally. If the contact pushed the ESC button, the vehicle would operate normally. The contact called don franklin lexington hyundai (3340 richmond rd, lexington, ky 40509, (859) 263-5020) and was quoted a repair cost of $900 for the sensor, which did not include labor. The manufacturer was not contacted. The failure mileage was 125,200.

Filed Apr 12, 2018 · Engine · 105,695 miles · NY

While driving the car, engine went into a loud whine sound and the car lost power. Car would not start or even try to turn over when trying to start. We have had previous problems involving the engine and even contacted hyundai because I was told by my mechanic that there was a recall on the exact engine that is involved here, but hyundai refused to acknowledge this because it wasn't the same model car involved in the engine recall. But it was the exact engine model. Attached is a letter from my mechanic

Filed Jan 8, 2018 · Acceleration, Engine · 12,554 miles · NY

Tl* the contact owns a 2011 hyundai elantra. The contact stated that the vehicle experienced a loss of engine power while being operated at approximately 55 MPH. The failure occurred without warning. Vision hyundai webster (755 ride rd, webster, ny) was contacted, but the failure was not diagnosed. The manufacturer was not notified. The failure mileage was 12,554.