Description

Workshop Manual for 2.9l CRDi j3 Engine

KIA / Hyundai 2.9 CRDi J3 Engine Specifications

Volume (cm3)	2902
Power (hp)	126-185
Torque	309 – 350 Nm
Timing drive	Belt
Environmental class	Euro 3/4/5
Fuel type	DT
ICE features	Intercooler
Supply system	Common Rail Delphi
hydraulic lifters	Yes
Cylinder block	Cast iron R4
cylinder head	aluminum 16v
Cylinder diameter	97.1 mm
Piston stroke	98 mm
Compression ratio	18-19
Phase regulator	Not
Turbocharging	No/VGT
Engine oil	6.6 L 5W-30
Average resource	250 000 km

In 1999, after five years of development, Kia introduced the 2.9-liter J-series diesel. This is a classic engine for its time with a Bosch VE distribution pump, a cast-iron block, an aluminum 16-valve head with hydraulic lifters and a timing belt. The IHI KHF5-1A turbine was responsible for supercharging here, this is a type of IHI RHF5 turbocharger. The first modification developed 126 hp. and 338 Nm of torque and supported EURO 2.

In 2001, the engine was equipped with a Common Rail Delphi DFP1 system with an injection pressure of 1500 bar and it began to support EURO 3 economy standards. This engine existed in two different versions: with a capacity of 144 hp. 310 Nm with IHI KHF5-1A turbine and balancer block for Carnival minivan , 150 hp 333 Nm with IHI KHF5-2B turbine, without balancers for Terracan SUV .

In 2004, the Terracan diesel received a Common Rail Delphi DFP3 system with a pressure of 1600 bar and its power increased to 163 hp. 345 Nm, but it remained with the support of only EURO 3 economy standards. But the second-generation Carnival minivan received a more modern modification of the engine: thanks to the Borg Warner BV50 variable geometry turbine, it already developed 185 hp. 343 Nm and with exactly the same fuel system CR Delphi DFP3 easily fit into the EURO 4 economy standards.

• J3 engine catalog weight is 243.9 kg
• Engine number J3 is located at the junction of the engine block with the head

2.9 CRDi J3 Engine Fuel Consumption

On the example of a 2003 Hyundai Terracan with a manual transmission:

Which Cars Were Equipped With The Hyundai-KIA 2.9 CRDi J3 Engine?

KIA

Carnival 1 (GQ)	1999 – 2005
Carnival 2 (VQ)	2005 – 2009

Hyundai

Terracan 1 (HP)

2001 – 2007

2.9 CRDi J3 Engine Pros And Cons

Advantages:

• A decent resource with proper care
• Widespread in our market
• Good selection of new and used parts
• The head has hydraulic lifters.

Disadvantages:

• Capricious fuel equipment Delphi
• Common engine electrical problems
• Regular leaks of antifreeze through the tubes
• Not the highest oil pump resource

The 5 Most Common KIA/Hyundai 2.9 CRDi J3 Engine Problems

1. The main problem of the 2.9 CRDi J3 diesel engine is the capricious Common Rail Delphi fuel equipment. There are many cases described on the network when the injection pump began to drive chips, clogging the entire system. Therefore, a popular service is the conversion of this internal combustion engine to the old Bosch VE4 pump.
2. A lot of trouble for the owner of cars with such a 2.9 CRDi J3 diesel engine is caused by electrical failures. Usually the cause is a short circuit in the wiring or an output from the engine ECU. We recommend contacting a specialized service, where they know the weak points of this engine.
3. The oil pump of this used engine significantly loses its performance, and the drop in lubrication pressure reduces the life of both the turbocharger and hydraulic compensators. And it’s good that it almost never comes to cranking the crankshaft liners here.
4. Another weak point of the 2.9 CRDi J3 engine: the mass air flow sensor, the USR valve and all quick-release connections due to which air leaks constantly occur. Also, the Kia Carnival often rots the pipes of the rear stove and it loses all the antifreeze.
5. It should be noted that the 2.9 CRDi J3 Engine is very capricious to the quality of fuel and reacts very badly to bad diesel fuel. Constant updating of the fuel filter and the installation of a special separator will help to solve this problem.
6. In addition, one of the common problems with the turbocharged version of the 2.9 CRDi J3 engine is turbine wear. This may be due to dust entering the turbine, which causes oil to be thrown into the intake. The solution to this problem is timely maintenance of the structure.

The manufacturer claims a J3 engine life of 200,000 km, but it also serves up to 400,000 km.

Conclusions

The J3 engine is a 2.9 liter diesel engine with a maximum power of 126 – 185 hp. and torque 309-350 Nm. Engine production began in the late 1990s. Specialists have developed 2 versions of the engine: atmospheric and turbocharged.

Interestingly, along with an increase in power, a turbocharged engine also reduces fuel consumption from 12 to 10 liters. This was made possible thanks to the Common Rail Delphi fuel injection system. It must also be said that the J3 engine is characterized by an optimal ratio of power and fuel consumption.

One of the distinguishing qualities of the engine is reliability. The cylinder block is made of cast iron, and the cylinder head is made of aluminum, equipped with 2 camshafts and 16 valves.

A big advantage is the presence of hydraulic compensators, so self-adjustment of the valves is not required. The simplicity of the design is also noted, therefore, an ordinary motorist who does not have professional skills can carry out certain technical work.

Tuning of this 2.9 CRDi J3 Engine is rarely done. If you want to increase the power performance, you can port the cylinder head or increase the pressure of the turbine. But, it must be borne in mind that along with an increase in the number of horsepower, the resource of the engine may decrease.