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New Subaru Seal

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New Subaru Seal

This bulletin applies to new parts information for a new active valve control system (AVCS) on 2012 Subaru Forester models and all Subaru models equipped with FA or FB engines

The oil control solenoid valves (OCV) contain a re-designed internal oil seal. The new seal will eliminate potential oil seepage into the wire harness connector portion of the valve. If oil seeps into the connector, over time, the check engine lamp may illuminate and set various AVCS-related DTCs. This applies to Forester models starting with VIN JH425420.

If oil is found in the harness connector during diagnosis of AVCS-related DTCs, replace the affected OCV with a new part. New OCVs can be identified by their production lot number located on the face of the solenoid. OCVs having a date stamp with the first 5 digits as 17159****** or higher are new parts.

If related engine wiring harnesses and/or connectors are oil contaminated, the harness itself may also need to be replaced if degreasing components using a spray parts cleaner is unsuccessful.

OIL CONTROL VALVE ASSEMBLY

NEW P/N ........................... OLD P/N

10921AA231...................... 10921AA230

10921AA241...................... 10921AA240

10921AA23B......................10921AA23A

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