{"nhtsa_id":10043097,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-02-22","date":"2011-09-01","document_id":"SP-645-013","mfr_campaign":null,"replaces":null,"component":"STEERING:HYDRAULIC POWER ASSIST:PUMP","mfr_system":null,"summary":"VOLVO TRUCK: CHECK IF TRUCK HAS LOSS OF LOW SPEED ASSIST; IF A POOL VALVE WAS REPLACED; CHECK PUMP FLOW AND PRESSURE TESTING AND REPLACE TANDEM PUMP ASSEMBLY; IF DAMAGE TO VALVE SPOOL BORE IN PUMP HOUSING THEN CHANGE TANDEM PUMP ASSEMBLY. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10043097","components":[{"id":"steering","name":"Steering","parent":null},{"id":"power-steering","name":"Power steering","parent":"steering"}],"codes":[],"topics":[],"vehicles":[{"make":"VOLVO","model":"VHD","year_from":2011,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"VOLVO","model":"VN","year_from":2011,"year_to":2011,"match":null,"vehicle_ids":[]}],"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":[]}