Vehicles using B204E engine list:

Engine B204E

Symptoms:
- Rough idling and stalling
- Loss of power or poor acceleration
- Engine misfires or hesitation
- Check engine light illumination
- Excessive oil consumption or smoke from exhaust

Diagnosis:
- Inspect ignition components (spark plugs, coils) for wear or damage
- Check for vacuum leaks around intake manifold and hoses
- Perform compression test to assess cylinder health
- Scan for fault codes related to fuel injection or ignition timing
- Examine PCV valve and oil leaks around valve cover gasket

Fixes:
- Replace worn spark plugs and ignition coils to restore proper firing
- Repair or replace cracked vacuum hoses and intake gaskets to eliminate leaks
- Service or replace PCV valve to prevent oil contamination and pressure buildup
- Fix oil leaks by replacing valve cover gasket and seals
- Clean or replace fuel injectors to ensure proper fuel delivery
- Address timing belt condition; replace if worn or due for service to avoid engine damage

Prevention:
- Follow recommended maintenance schedule for ignition system and timing belt replacement
- Use high-quality fuel and oil to reduce deposits and wear
- Regularly inspect and replace vacuum hoses and gaskets as needed
- Monitor oil levels and quality, changing oil at prescribed intervals
- Address check engine light warnings promptly to prevent escalation of issues