{"nhtsa_id":10044324,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2012-06-12","date":"2012-08-01","document_id":"FSB-255-024-03","mfr_campaign":null,"replaces":"FSB-255-024-04","component":"ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER","mfr_system":null,"summary":"MACK: AN UNRELIABLE SIGNAL TO ENGINE VGT ACTUATOR FROM ENGINE VARIABLE GEOMETRY TURBOCHARGER (VGT) ACTUATOR HARNESS THAT HAS SEVERE FRETTING DAMAGE, THE CONNECTOR PIN AND SOCKET CONTACTS SHOULD BE REPLACED. *PE UPDATED 9/17/12. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10044324","components":[{"id":"engine","name":"Engine","parent":null},{"id":"turbocharger","name":"Turbocharger or supercharger","parent":"engine"}],"codes":[],"topics":[],"vehicles":[{"make":"MACK","model":"CHU","year_from":2008,"year_to":2010,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"CXU","year_from":2008,"year_to":2010,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"GRANITE (GU)","year_from":2012,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"GU","year_from":2008,"year_to":2011,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"LEU","year_from":2008,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"MRU","year_from":2008,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"PINNACLE (CHU)","year_from":2011,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"PINNACLE (CXU)","year_from":2011,"year_to":2012,"match":null,"vehicle_ids":[]},{"make":"MACK","model":"TD","year_from":2012,"year_to":2012,"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":[]}