{"nhtsa_id":10154244,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-03-11","date":"2019-01-11","document_id":"TSB1800050111201","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR; EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This Technical Service Bulletin describes the verification and resolution to hunting during cold startups, generally in areas with cooler ambient temperatures. In some cases, the generator set will hunt until it shuts down on fault code 58 ? Exhaust Gas Temperature Shutdown. The issue sometimes corrects itself once the generator has warmed up, but is likely to return at next cold start. This is an update to a previously submitted communication.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10154244-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10154244-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10154244","components":[{"id":"electrical","name":"Electrical system","parent":null},{"id":"engine","name":"Engine","parent":null},{"id":"equipment","name":"Equipment and accessories","parent":null},{"id":"labels-manuals","name":"Labels and manuals","parent":null},{"id":"alternator","name":"Alternator","parent":"electrical"}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"HGJAA","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CUMMINS","model":"HGJAD","year_from":null,"year_to":null,"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":[]}