{"nhtsa_id":10036936,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2011-04-20","date":"2010-11-01","document_id":"SP-645-641","mfr_campaign":null,"replaces":null,"component":"STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS","mfr_system":null,"summary":"MACK: POWER STEERING HOSE, REPLACEMENT. A BLUE SILICONE HEATER HOSE WAS INCORRECTLY SUBSTITUTED AND INSTALLED ON RETURN SIDE OF POWER STEERING SYSTEM FOR POWER STEERING COOLER DURING PRODUCTION. NEED TO REPLACE HOSES AND POWER STEERING FILTER. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10036936","components":[{"id":"steering","name":"Steering","parent":null},{"id":"power-steering","name":"Power steering","parent":"steering"}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"GU","year_from":2011,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"PINNACLE (CHU)","year_from":2011,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"PINNACLE (CXU)","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":[]}