We had a standard oil change by Kia Edmonton when the Tucson was 2yrs old (we purchased new in November 2014 with 2yrs oil changes and this was in 2016). Kia failed to replace the engine oil cap and after we drove 100km the engine light came on and we had leaked oil everywhere. Had to fight Kia to tow our car back to their dealership, then they provided free detailing and a couple tanks of gas and considered all as well, we never went to a dealership after that and always completed our own oil changes and maintenance.

Fast forward to 2023 and ~160,000km and the console began showing the engine oil light very faintly and intermittently when we would idle the car, revving would remove the engine oil light. We changed oil and the light disappeared. No engine fault codes. This happened a few times just prior to the 5000km oil changes, vehicle also used some oil which we would replace periodically, but that seems to be an issue with these poorly made engines.

In January 2024 the engine began making a knocking noise. One engine fault code, cylinder 3 misfire, reset code and no more faults. The car had almost no acceleration and could not make it past 80km/hr, still no engine fault code. Had our mechanic replace the transmission fluid (was having delayed shifts, another problem I will put through), new spark plugs, and new injector coils but no change. We replaced the knock sensor, no change. Finally brought the vehicle to Spruce Grove Hyundai on February 21, 2024 and had to pay diagnostics. Okay. Still no engine code showing up, but assured by the service rep the engine would be covered under either the recall or warranty which was not up until March 31, 2024. The service rep was then of course "let go", as was the exact same story our friends gave us for their exact same problem with a vehicle at Spruce Grove Hyundai. Our vehicle sat at Hyundai almost TWO MONTHS prior to the final verdict being that we did not complete maintenance, the engine had sludge, and therefore no recall/warranty replacement. They had to put through the request for warranty/recall twice (they say, we have no proof from them) because they did not first complete the warranty recall on the knock sensor software.

We have always completed oil changes, but Hyundai does not recognize them if they are not done at their dealership it appears... the sludge is likely from the failing engine over the last 20,000km when the engine sensor never gave a code as to the failure (they said this was a 5yr warranty issue and not their concern regarding the 10yr powertrain warranty). Our own mechanic says we should certainly fight this and we are looking into legal action. Absolute worst experience of our lives purchasing a Hyundai from North Edmonton Kia (and their inability to complete a simple oil change) and taking our Hyundai to Spruce Grove Hyundai. We will or course never purchase another Kia/Hyundai and will be advocating against them in any way we can to stop others from making the same mistake we made for these poorly made vehicles that retain almost no value. This vehicle will be parted out if we can't get a replacement engine from Hyundai as there really is no reason to pay for a rebuilt or used engine as it will likely be faulty too, and a new engine is worth much more than this 9.5yr old Hyundai is even worth.

2014 Hyundai Tucson bought used with 20,781 original miles in November 2021, through an estate sale. On December 01, 2021, took the vehicle to dealer for analysis on an engine knocking noise that would not go away by driving it. I then researched the problem on the internet, and read these Hyundai engines had bad engine manufacturing defects, and regularly had engine failures, with some blowing a hole thru the engine block a causing fires.

After tests at the dealer, they stated it had “past” the engine knock noise test and I could bring in back at a later date for another test. They stated they could not do anything with it passing the noise test. I told him I could not use a car that was defective and not safe. I told him I knew Hyundai had settled engine failure lawsuits. No other attempts or offer was made.

On 02/23/22, I took the vehicle to the dealer again for another engine knock noise test. I believed the noise was now louder and stronger. After being tested again, the dealer stated it past the test again, and they could not replace the engine without a failed test. The dealer stated to come back when it fails or makes a really loud knocking noise. I told him I did not want it to blow up on me or make me cause an accident on the freeway before they would act. They stated it needed to fail the noise test. I told them I did not like this at all. I was told to keep using it until it failed.

On 09/22/22, I spoke to the dealer representative in person. He was very busy, I asked him to keep my engine noise case open on my car, as it was still making a loud knocking noise. He stated it was closed now. He offered no other further assistance on my problem, and started to talk to some else. I felt I was just blown off.

Now, I guess they want the engine to blow up before any thing is done to fix it. I further believe they don’t care if it causes an accident. Even though they know of the problem of engine defects on this engine that is very common, as the lawsuit settlement states, they still refused to just install another new engine, and be done with the problem. I feel they chose to hassle you and make it very hard to get another engine, and want you to just quit complaining. There should be a recall on all these defective engines in general, before more people buy defective and dangerous cars made by Hyundai. I now feel I have a car that is unreliable, not safe to drive, and possibly dangerous. Any suggestions??

2014 Hyundai Tucson bought used with 20,781 original miles in November 2021, through an estate sale. On December 1, 2021, I took the vehicle to dealer for analysis on an engine knocking noise that would not go away by driving it. I then researched the problem on the internet, and read these Hyundai engines had bad engine manufacturing defects, and regularly had engine failures, with some blowing a hole thru the engine block a causing fires.

After tests at the dealer, they stated it had “past” the engine knock noise test and I could bring in back at a later date for another test. They stated they could not do anything with it passing the noise test. I told him I could not use a car that was defective and not safe. I told him I knew Hyundai had settled engine failure lawsuits. No other attempts or offer was made.

On 02/23/22, I took the vehicle to the dealer again for another engine knock noise test. I believed the noise was now louder and stronger. After being tested again, the dealer stated it past the test again, and they could not replace the engine without a failed test. The dealer stated to come back when it fails or makes a really loud knocking noise. I told him I did not want it to blow up on me or make me cause an accident on the freeway before they would act. They stated it needed to fail the noise test. I told them I did not like this at all. I was told to keep using it until it failed.

On 09/22/22, I spoke to the dealer representative in person. He was very busy, and I asked him to keep my engine noise case open on my car, as it was still making a loud knocking noise. He stated it was closed now. I told him I was afraid to drive it to San Diego, and stated “I would too”. He offered no other further assistance on my problem, and started to talk to some else. I felt I was just blown off.

Now, I guess they want the engine to blow up before any thing is done to fix it. I further believe they don’t care if it causes an accident. Even though they know of the problem of engine defects on this engine that is common, as the lawsuit settlement states, they still refused to just install another new engine, and be done with the problem. I feel they chose to hassle you and make it very hard to get another engine, and want you to just quit complaining. There should be a recall on all these particular defective engines in general, before more people buy defective and dangerous cars made by Hyundai. I now feel I have a car that is unreliable, not safe to drive, and possibly dangerous. Any suggestions??