G4KA engine — Hyundai 2.0 (2L)
2L · 144-145 hp
Engine overview
Vehicles with this engine
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | G4KA |
| Capacity | 1998 cc |
| Idle speed | 650 ± 100 rpm |
| Inlet | 0.17 - 0.23 mm |
| Exhaust | 0.27 - 0.33 mm |
| Normal | 12.8 bar |
| Minimum | 11.4 bar |
| Differential limit between cylinders | < 1.0 bar |
| Normal | 12.83 bar |
| Minimum | 11.35 bar |
| Differential limit between cylinders | 1.0 bar |
Engine (petrol)
| Number of cylinders | 4 |
| Firing order | 1-3-4-2 |
| Timing stroboscopic (before TDC) | 10 ± 5 / 650 °/rpm |
| Ignition coil resistance, primary | 0.56 - 0.68 ohms |
| Ignition coil resistance, secondary | 6000 - 8000 ohms |
| Spark plugs (make and type) | NGK BKR5ES-11 Champion RC10YC4 |
| Spark plug gap | 1.0 - 1.1 mm |
| Spark plugs (make and type) | NGK BKR5ES Champion RC10YC |
| Spark plug gap | 0.8 - 0.9 mm |
| Injection pressure/system pressure | 3.43 ± 0.05 bar |
| Timing stroboscopic (before TDC) | 8° ± 5° °/rpm |
| Spark plugs (make and type) | NGK BKR5ES-11 CHAMPION RC 10YC4 |
| Fuel pump pressure | 3.5 bar |
| Lambda | 0.97 – 1.03 |
| CO at fast-idle speed | < 0.3 % |
Cooling system
| Cap pressure | 0.95 - 1.25 bar |
| Thermostat opens at | 82 °C |
| Thermostat fully open at | 95 °C |
| Cap pressure | 0.93 - 1.22 bar |
| Thermostat opens at | 82 ± 1.5 °C |
Electrical
| Battery | 68 Ah |
| Alternator | 110 A |
| Battery | 60/68 Ah |
Capacities
| Engine sump, incl. filter | 4.3 l |
| Manual transmission | M5GF2 |
| Gearbox refill | 1.9 l |
| Automatic transmission | F4A42-2 |
| Gearbox refill | 7.8 l |
| Cooling system | 6.0 - 6.2 l |
| Air-conditioner refrigerant | 550 ± 25 g |
| Air-conditioner compressor oil | 150 ± 10 ml |
| Gearbox refill | 2.15 l |
| Cooling system | 6.4 - 6.9 l |
| Power steering | 0.9 l |
Torque settings
| Cylinder head bolts — Stage 1 | 34.3 Nm |
| Cylinder head bolts — Stage 2 | 90 ° |
| Cylinder head bolts — Stage 3 | 90 ° |
| Oil plug | 35 - 45 Nm |
| Oxygen sensor | 35 - 44 Nm |
| Knock sensor | 17 - 25 Nm |
| Main bearing cap — Stage 1 | 27 Nm |
| Main bearing cap — Stage 2 | 45 ° |
| Wheel nuts | 90 - 110 Nm |
| Front hub | 200 - 280 Nm |
| Cylinder head bolts — Stage 1 | 34 Nm |
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
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Get free diagnosis →Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
Specifications, service figures and torque values come from manufacturer workshop documentation. The known-faults and tips sections were drafted with AI from public sources and re-checked in October 2026; anything that could not be confirmed was removed. Where the two disagree, the factory figure is the one to use.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
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The story behind TorqFix → · How these pages are made →Workshop data on this page last updated 22 Aug 2026.