{"nhtsa_id":10017968,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2005-12-10","date":"2005-10-06","document_id":"029705","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"ACTIVE VALVE CONTROL SYSTEM (AVCS) UNION SCREW FILTER. IF A ROUGH IDLE AND/OR RPM DOES NOT INCREASE SMOOTHLY THERE IS THE POSSIBILITY THAT THE UNION SCREW FILTER OF THE ACTIVE VALVE CONTROL SYSTEM (AVCS) COULD BE DAMAGED AFFECTING THE OIL CONTROL VALVE. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/10017968","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"SUBARU","model":"BAJA","year_from":2004,"year_to":2004,"match":"exact","vehicle_ids":["2004_subaru_baja"]},{"make":"SUBARU","model":"FORESTER","year_from":2004,"year_to":2004,"match":"exact","vehicle_ids":["2004_subaru_forester"]},{"make":"SUBARU","model":"IMPREZA","year_from":2004,"year_to":2004,"match":"exact","vehicle_ids":["2004_subaru_impreza"]}],"as_of":"2026-10-19","note":"A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.","attribution":[]}