2019 Hyundai Sonata - ENGINE and FUEL/PROPULSION SYSTEM Failure Complaint (#b17df3)

2019 Hyundai Sonata

• Date of Incident: Oct-20, 2024
• Date complaint filed: Dec-23, 2024
• Failed components: ENGINE and FUEL/PROPULSION SYSTEM

What component or system failed or malfunctioned, and is it available for inspection upon request? Since april 2025 i’ve been having low oil readings in my vehicle despite regular oil changes i took it into the dealer since my vehicle was still under warranty, which they stated only one part was under warranty. I had to pay $800 after this was replaced. I started having engine light come on. This engine light when i paid a diagnostic fee i learned that the cylinder three was misfiring. It was suggested that i have an oil change and get the oil level checked again within a week. This was done and it was determined that it was burning too much oil. I submitted this to the insurance and was told that this was not covered that there must be another reason why this was not working the way it should. 3 weeks ago then i was asked to replace the spark plugs and coils. These were replaced for an additional cost of approximately $300. After replacing this, the check engine light gave the same condition of third cylinder damage.. And the oil level continue to decrease the vehicle was left with the dealer for approximately 10 days. They stated that the engine needed to be cleaned due to possible carbon buildup for about $800 then they stated that the spark plugs and coils needed to be replaced with a specific brand and not the type that was previously used. Then my vehicle was returned to me, performing sluggishly with the check engine light returning with the same condition of third cylinder misfire. An inspection is available. How was your safety put at risk? The possibility engine failure away from hom has the problem been reproduced or confirmed by a dealer or independent service center? Yes twice has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? No were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Yes frequently over the last 2 months

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