The General Motors LDK 2.0-liter turbo engine was produced in the USA from 2008 to 2013 and was installed on charged Buick Regal modifications, including Hirsch Performance versions. This turbo engine on Opel cars was known under its own index A20NHT.
Ecotec family:
1st gen – LSJ, L61;
2nd gen – LDK, LHU, LNF, LAF, LEA, LE5, LE9;
3rd gen – LSY, LTG, LCV, LKW.
Specifications
| Production years | 2008-2013 |
| Displacement, cc | 1998 |
| Fuel system | direct injection |
| Power output, hp | 217 – 257 |
| Torque output, Nm | 350 – 400 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 86 |
| Compression ratio | 9.2 |
| Features | DOHC |
| Hydraulic lifters | no |
| Timing drive | chain |
| Phase regulator | Dual CVCP |
| Turbocharging | BorgWarner K04 |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 6.0 |
| Fuel type | petrol |
| Euro standards | EURO 5 |
| Fuel consumption, L/100 km (for Buick Regal 2010) — city — highway — combined |
13.1 8.2 10.7 |
| Engine lifespan, km | ~220 000 |
| Weight, kg | 163 |
The engine was installed on:
- Buick Regal 5 (GMX350) in 2008 – 2013.
Disadvantages of the GM LDK engine
- The main problem with turbo engines of this line is their high tendency to knock.
- Therefore, it is extremely important to monitor both the quality of the fuel and the cleanliness of the radiators.
- Another well-known problem is the rather low resource of the timing chain.
- And if you do not pay attention to the crackling of the chains, then you will have to change the phase regulators.
- The weak points of the engine include not the most durable electronic throttle and injection pump.
Frequently asked questions about the GM LDK
How much power does the GM LDK make?
The GM LDK develops 217 - 257 hp and 350 - 400 Nm of torque.
How much oil does the GM LDK take and which one?
Engine oil capacity: 6.0 liters. Recommended oil: 5W-30.
Does the GM LDK have a timing belt or chain?
The GM LDK uses a timing chain.
Is the GM LDK turbocharged?
Yes, the GM LDK is turbocharged (BorgWarner K04).
Does the GM LDK need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the GM LDK last?
The typical lifespan of the GM LDK is ~220 000 km with proper maintenance.
What is the fuel consumption of the GM LDK?
Buick Regal 2010: city 13.1, highway 8.2, combined 10.7 L/100 km.
What cars was the GM LDK installed on?
Buick Regal 5 (GMX350) in 2008 - 2013.
What are the common problems of the GM LDK?
The main problem with turbo engines of this line is their high tendency to knock. Therefore, it is extremely important to monitor both the quality of the fuel and the cleanliness of the radiators. All known problems.
