Hyundai KIA 3.3L Engine (Lambda MPI/GDI/T-GDI) Problems, Reliability

Hyundai KIA 3.3L Engine (Lambda MPI/GDI/T-GDI) Specs, Problems, Reliability. The Hyundai 3.3 L V6 gasoline engine (G6DB, G6DP, g6df, and g6dh) belongs to the Lambda family. The first Hyundai’s 3.3-liter engine of that series was presented in the 2006 Hyundai Sonata. It was the G6DB – 3.3 L V6 MPI engine. In 2010, the updated Lambda II version ended up being the replacement for the G6DB, and later, laid in a basis of the direct-injected engine and its turbocharged variation. Let’s take a more detailed take a look at each evolutionary action of the Hyundai 3.3 L engine.

Hyundai KIA 3.3L Engine (Lambda MPI GDI T GDI) Specs

The 3.3 L MPI Lambda engine is developed around an aluminum open-deck type engine block. There are lightweight aluminum cylinder heads with four valves per cylinder and 2 overhead camshafts for each cylinder bank. Lambda engines use 2 timing chains (by one for each head) and variable valve timing (Hyundai’s CVVT) on the consumption side just. The valves are activated via solid pails (there are not hydraulic webcam followers).

In this case, the adjustment is needed every 60,000 miles (100,000 km). Cylinder heads are covered by aluminum headcovers. The G6DB engine is geared up with the multi-port fuel injection system. The fuel system provides fuel for combustion utilizing a conventional method of spraying it by nozzles (injectors) into intake ports before the intake valves. The intake manifold is made from plastic for weight cost savings. The throttle body is already electronic – the accelerator pedal is electronically connected to the throttle valve.

Hyundai KIA 3.3L Engine (Lambda MPI/GDI/T-GDI) Problems, Reliability

Hyundai KIA 3.3L Engine (Lambda MPI/GDI/T-GDI) Problems, Reliability

The G6DF or 3.3 L MPI Lambda II engine appeared in 2009. Slightly enhancements over its predecessor enabled G6DF engine to increase maximum output efficiency and at the same time to be more environmentally friendly. The Lambda II MPI series has Double CVVT – variable consumption and exhaust valve timing. Aesthetically, it is easy to differentiate this series with a brand-new timing chain cover and plastic cylinder head covers.

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The GDI version of 3.3 Lambda II engine (the G6DH) is produced given that 2011. The brand-new engine got a redesigned lightweight crankshaft with enhanced balancing weights and a chain-driven variable displacement oil pump. The new cylinder heads still have 4 valves per cylinder (two intake valves and 2 exhaust valves) and no hydraulic webcam fans, chain-driven double overhead camshafts with Dual CVVT system, however also new holes and installing points for the high-pressure direct fuel injectors.

The engine is geared up with one high-pressure pump which mounted on top of one cylinder head (the front head of transverse engines or the ideal cylinder head of longitudinal engines). The fuel pump is activated by an extra web cam on the exhaust camshaft and supplies the max pressure as much as 150 Bar. The electronically controlled direct injectors spray compressed fuel into the combustion chambers directly for the more precisely managed and effective combustion process. Due to the high power, the 3.3 GDI engines are installed on large SUVs and crossovers of the Korean maker and also in the cars of the high-end brand Genesis.

The most innovative and powerful version is the 3.3 L T-GDI Lambda II engine (labeled as G6DP). The G6DP is an all-aluminum 3.3-liter V6 direct-injected twin-turbo engine to start with used in 2016 Genesis G80 and, a year later on, in the Kia Stinger. The engine got new cylinder heads with the incorporated and water-cooled exhaust manifold. The engineers installed exhaust valves with a sodium-filled stem and head. Water jackets of new heads have actually increased volume for much better cooling.

The cooling system now is equipped with a digitally controlled thermostat for exact engine temperature level control. Like the G6DH, the turbo engine has the high-pressure direct-injection system (GDI), however the brand-new system works at 200 bar (2,900 psi) of max-pressure due to increased fuel need. An increase air comes from 2 single-scroll turbochargers (by one for each cylinder bank) geared up with electronic wastegate actuators. Hot compressed air in the beginning goes through the air-to-air intercooler and then into an aluminum consumption manifold. Turbochargers run in connection with the new Double CVVT system, which offers up of 85 degrees of phasing compare to 50 degrees of webcam phasing inside the previous Lambda engines.

Hyundai Kia 3.3 L V6 Engine Problems and Reliability

A lot of problems for 3.3 L MPI engines are related to high oil usage. This is normal for engines with above-average mileage, which most likely have actually stuck/seized piston rings. The issue with the oil system can cause major damages. It’s advised to alter the oil in time following the maintenance schedule and often even more regularly. Fresh premium engine oil likewise prolongs the life of camera followers and can increase intervals in between valve clearance modifications. The average engine life for 3.3 MPI Lambda and Lambda II has to do with 180,000 miles (300,000 km).

The 3.3 L GDI engine has, in addition, an issue with carbon build-up on the intake valves. This is extremely common for direct injected engines. High oil usage is likewise more noticable. It’s all lowered reliability and dropped longevity down to 150,000 miles (250,000 km). Engineers didn’t apply the carbon accumulation service for the twin-turbo 3.3 T-GDI – integrated port and direct injection system, the way it was used in Toyota’s 2GR-FKS engine, for example. So, this problem is still there. Turbochargers also don’t add reliability. The engine is fairly new and there is inadequate data yet, however it is hard to believe in that the turbocharged versions will last as long as naturally aspirated 3.3 L GDI engines.

you must see more engine detail in here:  Engine – US Cars News or you can see on wiki here

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Hyundai KIA 3.3L Engine (Lambda MPI/GDI/T-GDI)Specs

Manufacturer Hyundai Motor Co.
Production years 2006-present day
Cylinder block material Aluminum
Cylinder head material Aluminum
Fuel type Gasoline
Fuel system Multi-point fuel injection;
Direct injection
Configuration V
Number of cylinders 6
Valves per cylinder 4
Valvetrain layout DOHC
Bore, mm 92.0 mm (3.60 in)
Stroke, mm 83.8 mm (3.30 in)
Displacement, cc 3,342 cc (204 cu in)
Type of internal combustion engine Four-stroke, naturally aspirated/turbocharged
Compression Ratio 10.4:1
Power, hp 235-365 hp (175-272 kW)/6,000-6,400
Torque, lb ft 226-376 lb-ft (306-510 Nm)/ 3,500-4,500
Engine weight
Firing order 1-2-3-4-5-6
Engine oil weight 5W-30 – MPI engines;
5W-20 – GDI and T-GDI engines.
Engine oil capacity, liter 5.2 (5.4 qt) – MPI version;
5.7 (6.0 qt) – GDI version;
6.9 (7.29 qt) – T-GDI version.
Oil change interval, mile 9,000 (15,000)/12months – MPI; 7,500 (12,000)/12months – GDI; 6,000 (10000)/6 months – T-GDI;
Applications Hyundai Palisade, Hyundai Azera, Hyundai Santa Fe, Hyundai Sonata, Kia Sorento, Kia Sedona, Kia Cadenza, Kia Stinger, Genesis G90, Genesis G80, Genesis G70

Hyundai KIA 3.3L Engine (Lambda MPI/GDI/T-GDI) Modifications

  • G6DB – 235 hp (175 kW) at 6,000 rpm, 226 lb-ft (306 Nm) at 3,500 rpm. Compression ratio is 10.4:1. This is the first 3.3 L MPI Lambda engine. Application: Hyundai Azera, Hyundai Santa Fe, Hyundai Sonata, Kia Sorento.
  • G6DF – 262-270 hp (195-201 kW) at 6,200 rpm, 233-235 lb-ft (316-319 Nm) at 4,500 rpm. The 3.3 L MPI Lambda II engine is for the Hyundai Azera, Hyundai Sonata.
  • G6DH – 280-294 hp (209-219 kW) at 6,400 rpm, 248-255 lb-ft (336-346 Nm) at 5,300 rpm. The G6DH is a 3.3 L GDI Lambda II engine. CR is 11.5:1. Application: Hyundai Palisade, Hyundai Azera, Hyundai Santa Fe, Kia Sedona, Kia Cadenza, Kia Sorento.
  • G6DP – 365 hp (272 kW) at 6,000 rpm, 376 lb-ft (510 Nm) at 1,300-4,500 rpm. This is the twin-turbo 3.3 L T-GDI engine available for the Kia Stinger, Genesis G70, Genesis G80, and Genesis G90.