The General Motors L32 3.8-liter compressor V6 engine was produced from 2003 to 2007 and was installed only on the 8th generation Pontiac Grand Prix sedans in GT and GTP modifications. There was a naturally aspirated version of this engine under the symbol L26 with a power of 200 hp / 310 Nm.
Buick V6 engine family: L32, L36, L67.
Specifications
| Production years | 2003 – 2007 |
| Displacement, cc | 3791 |
| Fuel system | distributed injection |
| Power output, hp | 260 |
| Torque output, Nm | 380 |
| Cylinder block | cast iron V6 |
| Block head | cast iron 12v |
| Cylinder bore, mm | 97 |
| Piston stroke, mm | 86 |
| Compression ratio | 8.5 |
| Features | OHV |
| Hydraulic lifters | yes |
| Timing drive | chain |
| Phase regulator | no |
| Turbocharging | Eaton M90 |
| Recommended engine oil | 5W-30 |
| Engine oil capacity, liter | 4.3 |
| Fuel type | petrol |
| Euro standards | EURO 3/4 |
| Fuel consumption, L/100 km (for Pontiac Grand Prix 2005) — city — highway — combined |
14.7 9.8 12.4 |
| Engine lifespan, km | ~300 000 |
| Weight, kg | 198 |
The engine was installed on:
- Pontiac Grand Prix 8 (GMX367) in 2003 – 2007.
Disadvantages of the GM L32 engine
- The main problem of its predecessors in the form of frequent antifreeze leaks has been corrected.
- Instead of a weak plastic intake manifold, a strong aluminum one is installed.
- However, plastic coolant pipes still burst regularly.
- It is important to keep the cooling system clean; this engine is prone to overheating.
- The spark plugs, ignition coils, crankshaft position sensor and mass air flow sensor are also characterized by a low resource.
