The 2.0-liter General Motors LSJ compressor engine was assembled in the USA from 2003 to 2007 and installed on charged modifications of the Chevrolet Cobalt SS and Saturn Ion Red Line Edition. This motor was distinguished from its predecessor LK9 by the presence of an Eaton M62 compressor instead of a turbine.
Ecotec family:
1st gen – LSJ, L61;
2nd gen – LDK, LHU, LNF, LAF, LEA, LE5, LE9;
3rd gen – LSY, LTG, LCV, LKW.
Specifications
| Production years | 2003-2007 |
| Displacement, cc | 1998 |
| Fuel system | distributed injection |
| Power output, hp | 205 |
| Torque output, Nm | 271 |
| Cylinder block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 86 |
| Piston stroke, mm | 86 |
| Compression ratio | 9.5 |
| Features | compressor |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | Eaton M62 |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 5.7 |
| Fuel type | petrol |
| Euro standards | EURO 3 |
| Fuel consumption, L/100 km (for Chevrolet Cobalt SS 2005) — city — highway — combined |
10.7 7.8 9.4 |
| Engine lifespan, km | ~220 000 |
| Weight, kg | 150 |
The engine was installed on:
- Chevrolet Cobalt 1 (GMX001) in 2004 – 2007;
- Saturn Ion 1 (GMX357) in 2003 – 2007.
Disadvantages of the GM LSJ engine
- Most of the complaints about this unit are associated with jumping idle speeds.
- In some cases, you have to clean the throttle and intake every 10,000 km.
- In second place is squeezing oil through the dipstick during sharp acceleration from a standstill.
- The weak points of this motor also include not the highest resource of the timing chain.
- And don’t forget to renew the oil in the compressor or it won’t last very long.
Frequently asked questions about the GM LSJ
How much power does the GM LSJ make?
The GM LSJ develops 205 hp and 271 Nm of torque.
How much oil does the GM LSJ take and which one?
Engine oil capacity: 5.7 liters. Recommended oil: 5W-30.
Does the GM LSJ have a timing belt or chain?
The GM LSJ uses a timing chain.
Is the GM LSJ turbocharged?
Yes, the GM LSJ is turbocharged (Eaton M62).
Does the GM LSJ need valve clearance adjustment?
No, the GM LSJ has hydraulic lifters, so the valve clearances do not need to be adjusted.
How long does the GM LSJ last?
The typical lifespan of the GM LSJ is ~220 000 km with proper maintenance.
What is the fuel consumption of the GM LSJ?
Chevrolet Cobalt SS 2005: city 10.7, highway 7.8, combined 9.4 L/100 km.
What cars was the GM LSJ installed on?
Chevrolet Cobalt 1 (GMX001) in 2004 - 2007; Saturn Ion 1 (GMX357) in 2003 - 2007.
What are the common problems of the GM LSJ?
Most of the complaints about this unit are associated with jumping idle speeds. In some cases, you have to clean the throttle and intake every 10,000 km. All known problems.
