{"nhtsa_id":51334,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1997-06-27","date":"1997-01-01","document_id":"97PTPD14","mfr_campaign":null,"replaces":null,"component":"ELECTRICAL SYSTEM","mfr_system":null,"summary":"UPGRADE OF TBI-4 MID FUNCTION UNITS. *JD","document":null,"url":"https://open.wenmarpro.com/bulletins/51334","components":[{"id":"electrical","name":"Electrical system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"DELCO","model":"DELCO","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":[]}