2010–2013 Hyundai Tucson: Engine knock or failure (2.4L Theta II)
Likely causes, ranked
- Connecting rod bearing wear (covered under Hyundai's Theta II extension)$0–$0Shop
- Oil loss from a leaking oil pan (recall 19V063)$0–$0Shop
Real-owner fix counts will appear here as reports come in.
DIY or shop: See DIY or shop section
Parts to check
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Symptom: A knocking engine, low oil, or a sudden engine failure.
Likely causes
- Rod bearing wear. Hyundai's extension covers 2010–2013 Tucsons with the 2.4L for 15 years or 150,000 miles, with the KSDS update required. Hyundai Forums owners say the 2014–2015 2.4 isn't listed the same way.
- An oil pan leak (recall 19V063).
Cost
Usually $0 if it qualifies.
DIY or shop?
Dealer.
Useful steps
- Check your VIN for recalls and the KSDS update.
- Check the oil level often.
- If it knocks, have it towed.
Vehicle focus: 2010–2013 Hyundai Tucson.
Safety / mechanic note
A seizing engine at speed is dangerous. Verify with a dealer.
Recalls & service bulletins
Recalls
- 19V063000 2011–2013 Tucson: the oil pan may leak, and oil loss can cause engine damage. Details
Technical service bulletins
- Hyundai Theta II extended warranty Coverage for connecting rod bearing wear on Theta II engines (15 yrs/150,000 miles), with the KSDS software required. Details
NHTSA complaints: 153 keyword-matched complaints for Hyundai Tucson 2010–2013 (of 687 unique complaints queried, NHTSA complaints API by model year, queried 2026-10-15).
Always check your VIN for open recalls at nhtsa.gov/recalls.
Sources
What actually fixed it?
Had this problem? Tell other owners what the real fix was. Reports are counted above; we never show made-up numbers.