2009 SUBARU Impreza EJ255/EJ204 (GD/GB)
GD/GB / Sedan / Hatchback / Global (mainly Japan, North America, Europe, Australia)
EJ255EJ204EJ20Exact year/trim recordGold
Engine identity
Oils and fluids
Service and parts data
Common and chronic problems
- Timing belt wear on high-mileage units
- Head gasket issues in older EJ20 engines
- Turbocharger wastegate rattle in EJ255
First checks
- Check timing belt condition and replacement history
- Inspect head gasket for leaks
- Check turbocharger operation if applicable
Before replacing parts
- Save fault codes and freeze-frame data before clearing anything.
- Check engine oil, coolant and transmission fluid using the correct temperature and service procedure.
- Verify power, ground, connectors, hoses, leaks and live data before replacing expensive parts.
Important notes
- Market differences significantly affect engine choice and specs; North America favored 2.5L engines, Europe more 2.0L variants.
- Turbocharged engines mostly found on WRX and STI trims, naturally aspirated engines on base/standard models.