2009 HYUNDAI Sonata Theta-II GDi 2.4L I4 (G4KF)/Mu 2.7L V6 (G6BA) (NF)

Engine identity

Oils and fluids

Service and parts data

Common and chronic problems

• Timing chain tensioner noise on Theta-II engines
• Excessive oil consumption in some 2.4L GDi engines
• Premature brake pad wear

First checks

• Confirm timing chain operation
• Check for oil leaks around valve cover and oil pan
• Inspect spark plugs for fouling

Vor dem Teiletausch

• Save fault codes and freeze-frame data before clearing anything.
• Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
• Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.

Important notes

• 2009 Sonata NF was sold globally with variations primarily between North American, South Korean, and select Asian markets.
• Exact engine availability may vary by market and trim; turbocharged 2.0L variant is limited and not available globally.