2019 Hyundai Kona: engine knocking or ticking

Filed Oct 16, 2026 · Engine · FL

While driving my 2019 Hyundai Kona with the 2.0L engine, the engine suddenly began making a loud knocking sound. Immediately after exiting the highway onto a main street, the vehicle stalled in active traffic, causing a sudden loss of motive power and creating a significant safety hazard. The first Hyundai dealership documented an engine knock and reported diagnostic trouble codes P0011, P0014, P0017, and P0366, involving camshaft timing and correlation. I was subsequently informed that the engine had suffered a catastrophic internal failure. A second Hyundai dealership later diagnosed a connecting-rod bearing failure affecting Cylinder 2. My vehicle is covered by Hyundai Recall 203, which concerns defective piston oil rings that can lead to abnormal oil consumption, engine damage, and potentially engine stalling. The vehicle previously passed Hyundai’s recall inspection/software procedure, but the engine has now experienced a catastrophic mechanical failure involving knocking and sudden stalling while driving. Hyundai has declined to replace the engine under the recall and has attributed the failure to an out-of-warranty maintenance/oil-related issue. I am also concerned about the reliability of the diagnostic process: the first dealership initially told me that a compression test had been performed and supported its conclusion about the engine failure, but later confirmed that no compression test had actually been performed. I am concerned that the prior recall remedy or inspection did not adequately identify or prevent the defect, and that an affected vehicle was allowed to remain in service until it suffered sudden engine failure and loss of motive power in traffic. I am requesting that the federal safety agency investigate whether this failure is related to Recall 203 and whether the recall remedy adequately protects owners whose vehicles initially passed the inspection but later experience engine damage, knocking, or stalling.

Filed Sep 7, 2026 · Engine, Fuel system · TX

My 2019 Hyundai Kona SE (2.0L Nu MPI/Atkinson engine) was previously subject to the federal safety agency Recall 21V301000 (Hyundai Recall 203) for defective piston oil rings that can chip and cause accelerated oil consumption, engine knocking, and stalling. That recall's remedy was performed under a prior owner in December 2021. In November 2025, a Hyundai dealership installed a Cylinder Noise Diagnostic System (CNDS) software update (Service Campaign 974) specifically meant to detect this defect's vibration signature before it causes engine damage. Approximately 7,000-8,000 miles and about nine months after that software update, the vehicle stalled unexpectedly while being driven on two separate occasions, with no check-engine light or other warning beforehand. A third stall left the vehicle unable to restart. It was towed to a service station, which found no engine oil and no external leak. A Hyundai dealership subsequently diagnosed cracked valves that allowed approximately 5 quarts of oil to burn through the engine, and determined the engine requires complete replacement. This is the same failure mode (oil consumption/engine damage leading to stalling) that the original recall and the 2025 software update were both meant to prevent, and the software gave no advance warning before the stalling occurred. The vehicle and dealership diagnosis are available for inspection upon request.

Filed Aug 18, 2026 · Engine · 81,000 miles · CT

The contact's daughter owns a 2019 Hyundai Kona. The contact stated that while her daughter was driving 40 MPH, smoke started coming from under the hood. The vehicle lost power and came to a stop in front of a convenience store, blocking the entrance. Several unknown warning lights were illuminated. The driver called the Fire Department, and it was confirmed that the engine compartment displayed severe heating damage. There was no fire. The firemen on the scene recommended that the vehicle be towed. The vehicle was towed to an independent mechanic, and the contact was informed that the failure was a known failure and might be covered under an extended warranty program. The vehicle was towed to the dealer, where it was diagnosed and determined that the engine had seized. No electrical failure was found. The dealer initially offered to cover 95% of the cost of the repair. The manufacturer was notified of the failure and offered to cover 85% of the cost of the repair, but the contact declined. The contact stated that the Knock Sensor Detection System (KSDS) software update had previously been completed on the vehicle; however, the update failed to prevent the engine failure. The manufacturer informed the contact that the extended warranty could not be applied due to a transfer of ownership to the contact's daughter. The failure mileage was approximately 81,000.

Filed Jul 16, 2026 · Engine · TX

The vehicle suffered a sudden, severe loss of power while driving, causing the engine to stall unexpectedly. This created an immediate hazard to myself and other motorists on the road, as I was forced to navigate a dead vehicle out of active traffic without power steering or power braking assist. Prior to the total failure, the engine exhibited severe mechanical knocking, loss of acceleration, and high oil consumption without any visible external oil leaks. This engine failure is a direct result of the manufacturing defect detailed in the federal safety agency Safety Recall 203 (the federal safety agency Campaign 21V301000) concerning improperly heat-treated piston oil rings that cause severe cylinder scuffing and engine stall. Although the software update (Campaign 974) was previously completed on this VIN, the physical defect was never mechanically repaired. The software update failed to prevent the physical, defectively manufactured components from destroying the engine. Hyundai is refusing to honor the safety campaign and replace the failed engine because the recall database incorrectly lists the recall status as "completed."

Filed May 21, 2026 · Engine · 120,132 miles · FL

The contact owns a 2019 HYUNDAI Kona. The contact stated while driving the vehicle at an undisclosed speed, he noticed he had an engine knock, and noticed that the engine was consuming a good amount of oil with no warning lights or oil leaks. The contact pulled over to the side when the knock started and noticed the vehicle was starving of oil although a recent oil change shows it was recent. The vehicle was taken to a dealer where it was diagnosed to have poor service, and engine sludge although dealer stated there was none. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 120,132.

Filed May 20, 2026 · Engine, Transmission · VT

96,247 mi Engine knock and complete oil loss within 3,000 miles of last oil change Symptoms consistent with the federal safety agency Recall 21V301 (Hyundai Recall 203) and Warranty Extension TXXM coverage

Filed Apr 16, 2026 · Engine · MO

Last week just driving to school, my engine started to knock. So the next day we take it to a local mechanic shop and it exploded while they were test driving it and they diagnosed it with rod bearing failure. So I contact Hyundai and get it towed to the Hyundai dealership for them to inspect it and eventually do an engine swap, but after it got dropped off I was told it’d be $360 to get it diagnosed and filed and they said that I have no warranty. I explained to the rep that the class action lawsuit regarding the Theta 2 GDI engines extends the warranty to 15 years/150,000 miles for all subsequent owners especially since I’ve had the KSDS installed. They’re refusing to cover damages even though my car was affected by a manufacturing issue on their end and was part of major recall campaigns. My car failed at 94,000 miles while up to date on services and the representative was recommending I ask Hyundai for “good-will funding” but I don’t need their “good will” I need them to make the situation right and cover all my expenses related to my blown engine

Filed Mar 9, 2026 · Engine · 94,634 miles · OH

The contact owns a 2019 Hyundai Kona. The contact stated that while driving at an undisclosed speed, there was a knocking sound coming from the vehicle with the check engine warning light illuminated. The vehicle was driven to an independent mechanic, where it was diagnosed with engine failure. The contact referenced the federal safety agency Campaign Number: 21V301000 (ENGINE); however, the VIN was not under recall. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 94,634.

Filed Feb 26, 2026 · Engine · OH

Engine smoke’s every now and then I go through a quart of oil every 600-1000 miles doubt it’s supposed to do that one time I went the full oil change limit I was completely out of oil the car was ticking and all this other stuff scene then I’m topping off my oil every 1000 miles till I need a oil change and it don’t stop ticking now so that’s a defect I don’t know if it’s apart of the 19-21 recall or not but this is not an okay engine

Filed Feb 25, 2026 · Engine · 68,000 miles · CA

The contact owns a 2019 Hyundai Kona. The contact stated that while driving at various speeds, there was an abnormal knocking sound coming from the vehicle with the check engine warning light illuminated. Upon inspection of the vehicle, the contact discovered that the engine oil was low, and the contact added oil to the engine. The contact stated that the failure was intermittent. Upon investigation, the contact discovered the federal safety agency Campaign Number: 21V301000 (Engine). The contact continued to investigate the failure and discovered that the vehicle was previously repaired before owning the vehicle. The contact reached out to several dealers and the manufacturer about the issue; however, no assistance was provided. The contact continued to speak with the manufacturer, and the manufacturer agreed to have an oil consumption test performed on the vehicle. The vehicle tested by two dealers for the consumption test and the results came back inconclusive. The vehicle was not repaired. The failure mileage was approximately 68,000.

Filed Feb 6, 2026 · Engine · 100,902 miles · SC

The contact owns a 2019 Hyundai Kona. The contact stated that while driving at an undisclosed speed, the engine was shutting down while on the way to work, with a knocking sound coming from the engine. The vehicle was towed to the dealer. The contact associated the failure with the federal safety agency Campaign Number: 21V301000 (ENGINE); however, the dealer refused to perform the recall repair, because there were other failures with the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 100,902.

Filed Feb 3, 2026 · Engine · 94,000 miles · ME

The contact owns a 2019 Hyundai Kona. The contact stated that while operating the vehicle, the check engine warning light illuminated, with a knocking sound coming from the engine compartment. The contact stated that the vehicle shutoff while idling. The vehicle was taken to the local mechanic who was unable to determine the cause of the failure. Later, while idling at a stoplight, the vehicle stalled and failed to restart. The vehicle was eventually towed to the local dealer, who confirmed that the connecting rods had failed and punctured a hole in the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, and the contact was informed that the VIN was not included in the federal safety agency Campaign Number: 21V301000 (ENGINE). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 94,000.