The 2.3-liter naturally aspirated Saab B234i engine was produced by the concern from 1990 to 1999 and was installed on the company’s most popular models of its time, such as the 9000, 900 and 9-3. There were two versions of the motor: the so-called Long Block of 1990 and Short Block of 1993.
2.3-liter H-series engines: B234E, B234i, B234R, B235E, B235R.
Specifications
| Production years | 1990-1999 |
| Displacement, cc | 2290 |
| Fuel system | distributed injection |
| Power output, hp | 150 |
| Torque output, Nm | 210 |
| Cylinder block | cast iron R4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 90 |
| Piston stroke, mm | 90 |
| Compression ratio | 10.0 – 10.5 |
| Features | Bosch Motronic |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | no |
| Recommended engine oil | 5W-40 |
| Engine oil capacity, liter | 4.0 |
| Fuel type | petrol |
| Euro standards | EURO 2/3 |
| Fuel consumption, L/100 km (for Saab 9000 1995) — city — highway — combined |
11.1 7.3 9.2 |
| Engine lifespan, km | ~360 000 |
The engine was installed on:
- Saab 900 II (NG) in 1993 – 1998;
- Saab 9000 I in 1990 – 1995;
- Saab 9-3 I (YS3D) in 1998 – 1999.
Disadvantages of the Saab B234i engine
- All power units of this family are very reliable and especially atmospheric.
- Most of the problems are caused by balance shafts and many simply remove them.
- By 250,000 km, the timing chain in the engine often stretches and starts to rattle loudly.
- A lot of trouble here is associated with leaks due to collapsed hoses and pipes.
- Engine weaknesses also include the mass air flow sensor, oil pump and short-lived wiring.
