Engine Hyundai-Kia G6DA

The 3.8-liter gasoline V6 engine Hyundai G6DA was produced in America from 2004 to 2016 and was installed on both front-wheel drive Grandeur and rear-wheel drive ix55 models. Such a power unit existed in two generations with quite significant differences.

In 2005, a 3.8-liter power unit appeared in the Lambda I family of V6 engines. This is a very conventional V-engine with an aluminum block and a 60° camber angle, a pair of aluminum DOHC cylinder heads without hydraulic lifters, multiport fuel injection, a timing chain drive and an intake manifold with a 2-stage geometry change system. The first generation unit was equipped with CVVT-type phase regulators only on the intake shafts.

In 2008, the second-generation 3.8-liter V6 power unit, or Lambda II, debuted. The engine received a CVVT variable valve timing system already on all camshafts and a modern plastic intake manifold with a 3-stage geometry change system.

Lambda 3.8L family: G6DA, G6DJ, G6DK, G6DN.

The engine was installed on:

  • Hyundai Entourage 1 (EP) in 2006 – 2009;
  • Hyundai Equus 1 (LZ) in 2005 – 2008;
  • Hyundai Grandeur 4 (TG) in 2005 – 2011;
  • Hyundai ix55 1 (EN) in 2006 – 2015;
  • Kia Carnival 2 (VQ) in 2005 – 2014;
  • Kia Mohave 1 (HM) in 2008 – 2016;
  • Kia Opirus 1 (GH) in 2005 – 2011;
  • Kia Sorento 1 (BL) in 2006 – 2009.

Specifications

Production years 2004-2016
Displacement, cc 3778
Fuel system distributed injection
Power output, hp 240 – 284
Torque output, Nm 343 – 369
Cylinder block aluminum V6
Block head aluminum 24v
Cylinder bore, mm 96
Piston stroke, mm 87
Compression ratio 10.4
Features DOHC
Hydraulic lifters no
Timing drive chain
Phase regulator CVVT
Turbocharging no
Recommended engine oil 5W-30, 5W-40
Engine oil capacity, liter 6.0 (there are versions with a 6.4 liter pallet)
Fuel type 92
Euro standards EURO 3/4
Fuel consumption, L/100 km (for Hyundai ix55 2010)
— city
— highway
— combined
17.6
9.1
12.2
Engine lifespan, km ~300 000
Weight, kg 215 (with attachments)

Disadvantages of the Hyundai G6DA engine

  • The bulk of the complaints from the owners are somehow connected with the oil burner and the reason for this is the banal occurrence of the oil scraper rings, they are thin here. Decarbonizing usually does not help, most often you still have to open the engine.
  • When the level of lubrication in the system drops due to the oil burner, the liners often turn, on specialized forums you can find a description of a large number of such breakdowns. However, periodically serviced units also wedge, apparently the liners are rather weak here.
  • The timing chain has a not very high resource, sometimes it lasts less than 150,000 km, and the replacement is quite expensive, especially if you have to buy new phase regulators. On engines of the second generation, the chains began to run longer, but the hydraulic tensioner fails.
  • Oil leaks from under the plastic valve covers also regularly occur, the throttle wedges from soot and the elements of the intake geometry change system burst. And do not forget about adjusting the valve clearance, it is usually required every 60,000 km.

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