This service bulletin provides new inspection and repair procedures for AVCS (Active Valve Control System) related DTCs on Subaru Legacy and Outback 2.5L models, Impreza 2.0L models, and Forester 2.5L and 2.0L models.
Important Notes and Reminders
When performing maintenance on your Subaru, always follow the recommended guidelines and procedures to ensure safety and to prevent damage to your vehicle.
Steps to Follow
When diagnosing and repairing AVCS-related DTCs, follow these steps:
1. Check the DTCs and determine if the problem is with the AVCS system.
2. Check the engine oil condition and level, and correct any deficiencies.
3. Perform a drive cycle to clear any stored DTCs.
4. Check for any issues with the oil control valve, cam angle sensor, and crank angle sensor.
5. If necessary, replace the cam carrier oil filter and valve cover gasket.
6. Check the VVT initial position learning value and adjust as necessary.
7. Check for any issues with the oil pump, chain cover, and timing chain.
8. If necessary, replace the ECU.
9. Check for any issues with the oil strainer and clean or replace as necessary.
10. If necessary, replace the engine oil and oil filter.
Remember to always refer to the Subaru service manual and follow the recommended procedures and guidelines for your specific vehicle.
Manual:
Download: 2016 Subaru Service Bulletin – Inspection and Repair Procedures for AVCS-Related DTCs
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