Hyundai G4ED – 1.6L DOHC 16V CVVT

• Engine Code: G4ED (with CVVT)

• Family: Hyundai Alpha II series

• Displacement: 1.6 L (1,596 cc)

• Configuration: Inline-4

• Valvetrain: DOHC, 16-valve (4 valves per cylinder)

• Fuel System: Multi-point fuel injection (MPI)

• Aspiration: Naturally aspirated

• Power Output (CVVT model):

  • ~110–112 hp (82–84 kW) @ 6,000 rpm

  • Torque ~146 Nm @ 4,500 rpm

• Timing: Belt-driven DOHC with Continuously Variable Valve Timing (CVVT) on intake cam.

• Years: ~2005–2011

🚙 Applications (G4ED CVVT)

Found in later Hyundai/Kia models after CVVT was introduced:

• Hyundai Accent MC (2006–2011) – 1.6 GLS/GL

• Hyundai Elantra XD (facelift, 2004–2006 in some markets)

• Hyundai Matrix 1.6 CVVT

• Kia Rio JB (2006–2011, 1.6 CVVT)

✅ Strengths

• CVVT = better torque curve + fuel economy compared to non-VVT.

• Reliable if maintained properly.

• Widely available spares (shared across Accent/Rio/Matrix).

⚠️ Common Issues

• Timing belt must be changed on schedule (interference engine).

• CVVT solenoid failure → rough idle / poor performance.

• Oil sludge buildup if oil changes are skipped.

• Coil packs and engine mounts wear faster with age.