2013 Hyundai Elantra: sudden loss of power

Filed May 28, 2026 · Acceleration · CA

Car developed a sudden loss of power. Would start, although roughly (took a couple of times to start), then once shifted into Drive, the engine was very sluggish, like it was stuck in a lower gear. Upon stopping and restarting the engine, the problem would sometimes resolve and the car could be driven normally, however it felt unsafe to drive at normal speeds. No warning signs appeared. After consulting with a family member with this same year and model of Hyundai Elantra, it was suggested that the crankshaft position sensor might be at fault. After researching online, we discovered that this is a common issue with 2011-2016 Elantras with a 1.8 liter engine. (Reddit forums, also this link: [XXX] ). After trying transmission and other fluid flushes without luck, we took the car to a local Hyundai dealer. They said they were unable to replicate the issue but we told them to please replace the crankshaft position sensor, which they finally did. We were charged a total of $711.40 for this repair of a simple part. Please note, another Hyundai dealer in town replaced this part for my brother's vehicle free of charge. This should be a recall item for this vehicle and it should be replaced for free. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Apr 6, 2026 · Engine, Fuel system · ND

A significant engine failure occurred while driving, presenting as loud knocking from the engine. The issue developed without prior warning lights or messages. The vehicle was inspected by a dealership and the problem was confirmed as internal engine failure (piston slap/engine knock). The dealership recommended full engine replacement. The engine is available for inspection upon request. There was no evidence of sludge or lack of maintenance noted during inspection. The most recent oil change had been performed less than 1,000 miles prior to the failure, indicating the issue was not caused by lack of maintenance. This condition creates a safety concern due to the potential for sudden engine failure, loss of power, or engine seizure while driving, which could increase the risk of an accident, especially at highway speeds. The issue has been confirmed by a dealership and has not been repaired due to cost.

Filed Feb 24, 2026 · Engine · WV

The vehicle has developed a pronounced knocking noise that was diagnosed by your authorized dealership as “piston slap.” I was informed by dealership staff that this is a known issue with this vehicle. However, because the vehicle is outside of warranty by time and mileage, I was told no repair assistance would be provided. My primary concern is safety. While there are currently no warning lamps illuminated, the engine is producing a consistent knocking noise. If this condition progresses to piston or engine failure while the vehicle is in operation, it could cause sudden loss of power or engine seizure. Such a failure at highway speeds or in traffic could create a serious accident risk to myself and others. Additionally, I was charged one hour of diagnostic labor, despite the dealership immediately recognizing the noise as piston slap without needing further testing. This raises concern that: The issue is well-known, The condition was identifiable without extensive diagnosis, Yet I was still billed for a full diagnostic hour. Given that this is acknowledged as a known issue, I am requesting: A formal review of this case by your product safety and quality department. Clarification on whether this condition has been the subject of technical service bulletins, extended coverage programs, or internal advisories. Consideration of goodwill repair assistance due to the potential safety implications. Reimbursement of the diagnostic charge, as no true diagnostic procedure appears to have been required. Written confirmation that continued operation of the vehicle in its current condition does not present a safety risk. I am prepared to provide service records, invoices, and any additional documentation needed. Given the potential safety implications, I respectfully request a response within 48 hours. I am hopeful the manufacturer will stand behind the safety and reliability of its product and address this matter promptly.

Filed Jul 15, 2025 · Electrical, Engine · GA

This seems to be a very common and serious issue with Hyundai vehicles. 2013 Hyundai Elanta, believed to be a frequent crankshaft position sensor issue. When driving the car, they vehicle will feel that it is losing power. When coming to a stop the engine will idle so low that it feels like it will stall or it does stall. The tachometer registered zero RPM's, even when accellearting. Attempting to accelerate up any incline and the car can not provide enough power. Sometimes the car will crank up, other times it will require time to restart. The car has stalled and low power idling multiple times, but it did happen in the middle of a 4 way intersection twice, and when the issue is present. Although we've been fortunate, no accidents have occurred, it is very unsafe for the owner and other drivers. This occurrence has happened several times over the past year. Two times it was immediately brought into the dealer service, the second time it did stall with the service member there. Both times they were unable to diagnose the problem and stated no error codes were reported. You have already issued a Recall for this same issue with a different model. Oct. 13, 2017 – Hyundai Motor America has recalled more than 400 vehicles potentially equipped with defective crankshaft assemblies, according to documentation submitted to the National Transportation Safety Administration. There are so many others that have reported this same issue and have been corrected with the replacement of the crankshaft position sensor. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed May 22, 2024 · Engine · MO

Complaint: Failure to notify or reave owned the car since October 2013 and have been notified of other defects through recalls from HMA. Which were serviced and completed on [XXX], 2023. 1.Recall 170: BRAKE PEDAL STpair while under service at a Hyundai dealer of a potentially hazardous defect. Foremost, Hyundai Motors America (HMA) never notified us of the potentially hazardous defect with motor. We hOPPER REPLACEMENT, [XXX], 2023 2.Service Campaign 933Service2011-13 ELANTRA, (UD), A/T SHIFT LEVER CLIP INSTALLATION, [XXX], 2023 3.Service Campaign 993ServiceIBU/BCM ANTI-THEFT SOFTWARE UPGRADE AND DECAL APPLICATION, [XXX], 2023 In conclusion, while driving in Bellevue, NE on [XXX], 2024, the motor developed piston slap, rod knock, and loss of power. Had this occurrence happened on a wet, snow or hail covered road whether on an incline, decline or level surface, physical injury would have been likely. Realizing that the vehicle would not make the return trip to Kansas City. MO, the vehicle was traded in at loss for a Chevrolet Bolt. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Nov 28, 2023 · Acceleration, Brakes · OR

Car has a ticking sound, car has died on me multiple times. The vehicle has stopped moving regardless of pressing on accelerator and died leaving me stranded, feeling unsafe. I have been driving at 40 mph and then seem to lose power, making it to where can only go 10 to 20 mph or totally dying. I was also having issues with key fobs not working. Door would open, unlock and then not, car stalling. No lights illuminating on dash. Battery in fob replaced after car being towed to shop after stalling, dying issue and I was basically told they didn't know what was up with the stalling, maybe fobs. I had an oil change done and full diagnostic, sent on way without answers. Happened again, electrical issues, fob not working, stalling, start hesitation and dying, no power. I had it towed to different shop and was told had couple of codes showing up even though no check engine light on, they stated a caliper was leaking along with other oil leak and crankshaft sensor needed replaced, which got fixed. The car has 98000 miles on it (around there) and I see safety recall posted. I finance this car and have literally only had it not even 5 months. I do not feel safe driving it. I've been stranded, at times key fobs and locks act up on it still, the ticking is definitely a concern, RPMS off and revs up at times while also lacking pick up and go. I contacted my local Hyundai and they stated no resolution on safety recall yet, can schedule an appointment and pay for diagnostic, which would make my 3rd diagnostic over the last month or so. I need something remedied. I transport myself and at times my children and I do not feel safe in this vehicle which again purchased just about 5 months ago from Car Max. Help please!

Filed May 2, 2023 · Electrical, Engine · PA

I dropped my 2013 Hyundai Elantra Limited off on 4/3/23 for an oil change and to diagnosis and repair my engine stalling and engine boggling and repair headlight restoration. When I picked up my car I was told that they found metal shaving in my oil and on the oil dip stick and that I would need a new engine. Might I add, I don't have any lights blinking or remaining on such as my oil, engine, etc. I have kept up with all my maintenance over the years and have had my car service when it was due. While driving my car, it'll lose power and jerk forward. Other times, the car will start up with no RPMs registering while the car is moving up to 60 miles. The car has also displaced the sluggish barely moving forward action when the car's RPMs are not registering. The car back fires and putts along and during a traffic lights or stop sign the car will shut off. It even started shutting off while back-up into my parking space. There is clearly something wrong with these engines and should be covered under the manufacturer warranty. I am still in disbelief about my vehicle and have been getting the run around from a couple different Hyundai dealerships saying my particular engine was discontinued and I should check with the service department to see if my car qualifies for the manufacturer warranty repair but no one will answer the phone so I decided to call another dealership well outside my area for service. This car is by far DANGEROUS to drive and without having any codes generated or light indicators advising me of an engine issue is extremely upsetting. I use my vehicle to take my mother to her many doctor appointments, my grandson to various places and I use the car to get to and from work each day. Well before all of these issues, my break lights and some other lights in the rear continued to blow and had to be replaced and no one said anything about there being an issue and I did not have the appropriate direction to submit an issue.

Filed Aug 3, 2022 · Engine · KY

All warning lights will come on the car usually when car is stopped at a stopped sign or light. Car will not be able to move but air is still on and radio is still on. If car is then turned off and then turned back on, no lights will appear and car will drive normally. Car also will start gliding like it has lost power. Usually putting the car in park and then in drive will correct the issue but not warning lights will come on.

Filed Mar 29, 2022 · Electrical · OH

Immobilizer malfunctioning while driving which causes vehicle to lose power unexpectedly while no key is detected.

Filed Nov 29, 2019 · Transmission · 217,500 miles · TN

Tl* the contact owns a 2013 hyundai elantra. While driving approximately 35 MPH, the battery indicator and headlights flickered. Other unknown indicators on the instrument panel were also illuminated. The vehicle lost power and decelerated. The dealer was not contacted. The manufacturer was made aware of the failure and provided case number: 16408283. The vehicle was not diagnosed or repaired. The failure mileage was approximately 217,500.

Filed Nov 15, 2019 · Steering · 21,000 miles · GA

When turning the wheel while stationary or driving, there is a loud crunching sound coming from the wheel turning right or left. Someone told me I will then lose power steering & that around 21,000-29,000 miles on your car this is what happens. A small wheel nut behind the wheel & dash board breaks up. I am afraid to lose my power steering. This has happened to a number of owners.

Filed Feb 27, 2019 · Engine · 89,000 miles · TX

A knocking noise from the engine that increases in frequency as the engine RPM increases. Reduced power and/or hesitation and vibration. In motion the knocking comes from the engine and when stopped it hesitation and vibrate