A connecting rod bearing was thrown through the engine block causing it to stall out on the freeway. This is exactly what is occurring with vehicles in the Theta Class Action Settlement but the company states my VIN number is not included.
2018 hyundai Tucson engine problems
moderate 154 complaints filed with NHTSA · avg repair $3,100
Complaints
154
Recalls
0
Crashes
0
Avg fix
$3,100
What owners are reporting 13 most recent
Engine (1.6-liter turbocharged direct-injection four-cylinder) had a catastrophic failure driving along highway. Engine instantly lost power and stalled. No indicators on instrument cluster prior to engine stall, temperature gauge for coolant indicating nominal conditions. Upon pulling over to the side of the road, check engine & batter indicator lights shown on the instrument cluster. Hyundai's…
I bought my 2018 tuscon one year ago in June 2020. 70,000 miles on it now, regular maintenance. No warning lights, everything was running OK. I started experiencing hesitation taking off then lunging when stopped in the last few months. Now I'm sitting in the driveway because it won't start. Realized oil was low which is odd because I've noticed it's been burning more than previous but no mor…
Emission light is on and called dealer for an appointment, stated they will called me when they can line me up with a tech and I still waiting.
My 2018 Hyundai Tucson has been experiencing oil consumption issues for over a year. It began at around 80k miles, when it should have been covered by warranty but they made me pay out of pocket for an oil consumption test only to ultimately recommend a top end cleaning, which I also paid for and it did not solve the problem. This is a known issue with Hyundai, and they have settled many lawsuits…
I GET OIL CHANGES QUITE FREQUENTLY DUE TO THE MILEAGE I PUT IN A VEHICLE. I HAVE 7 OIL CHANGES/TIRE ROTATIONS BETWEEN NOVEMBER 2018 AND NOVEMBER 2019. ON NOVEMBER 13TH 2019 MY CHECK ENGINE LIKE CAME ON AND AT THE SAME TIME MY ENGINE STARTED MAKING A KNOCKING SOUND. PRIOR TO THIS I HAD NO INDICATORS THAT ANYTHING WAS WRONG. I IMMEDIATELY TOOK IT TO THE DEALERSHIP AND WAS INFORMED THAT I NEED A N…
MOTOR KNOCKING WITH ONLY 65,000 MILES. NOT GETTING POWER
On Saturday, November 23rd, while driving down the highway the check engine light came on and the car would not accelerate past 40 mph. When accelerating from a stop, the car's acceleration is greatly diminished. The car was checked out be a local Hyundai dealership. After running a diagnostic, the mechanic reported the following: the car has a knock sensor code, valve stem seals are leaking …
Oil consumption, will change oil and within weeks i will be down 23 Quarts of oil
This is the 2nd time I have had a sensor indicator. The first was a knock sensor where my car barely made it across the road. Now another code for intake issues. If my car dies and I get hit Hyundai is liable. I know many people that have issues with their Hyundai dying and are without their cars waiting for repairs for. months and months, but the fact that I have a grandson and my car could die i…
Common questions
How serious is the engine problem on the 2018 hyundai Tucson?
It's a documented issue but not catastrophic. 154 complaints have been filed. Repairs average $3,100 and most owners catch it before it causes a breakdown.
At what mileage does the engine typically fail?
Mileage data is limited for this issue. Owners report failures across a wide range, suggesting cause is more about driving conditions and maintenance than mileage alone.
What does it cost to fix?
Independent shops typically charge around $3,100 for engine repairs on this vehicle. Dealer pricing tends to run 20-40% higher. The exact figure depends on the specific failure mode, parts availability, and your local labor rates. If you're outside factory warranty, an extended service contract often covers this category.
Are there any recalls related to engine?
No active recalls currently cover engine issues on this vehicle. The complaints filed represent owner-reported failures that haven't risen to the level of a manufacturer-issued recall — but they're still worth knowing about before you buy or budget for repairs.
Other problem areas on this vehicle
Complaint and recall data sourced from the National Highway Traffic Safety Administration (NHTSA)
public records database. Severity ratings are derived from reported crashes, fires, injuries, and fatalities.
Repair cost estimates are independent-shop national averages and may differ in your area.
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