{"nhtsa_id":631349,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-05-22","date":"2002-03-01","document_id":"010604049","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:DIESEL","mfr_system":null,"summary":"SUBJECT REGARDING WHITE SMOKE DURING START UP,INCLUDES 1998-2002 CHEVROLET AND GMC WT 5500 SERIES MEDIUM DUTY TILT CAB MODELS. *SLC","document":null,"url":"https://open.wenmarpro.com/bulletins/631349","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"CHEVROLET TRUCK","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"T SERIES","year_from":2000,"year_to":2002,"match":"exact","vehicle_ids":["2000_chevrolet_t-series","2001_chevrolet_t-series","2002_chevrolet_t-series"]},{"make":"GMC","model":"GMC","year_from":null,"year_to":null,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"T SERIES","year_from":2000,"year_to":2002,"match":"exact","vehicle_ids":["2000_gmc_t-series","2001_gmc_t-series","2002_gmc_t-series"]}],"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":[]}