{"nhtsa_id":51245,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1997-06-27","date":"1997-01-01","document_id":"666308","mfr_campaign":null,"replaces":null,"component":"FUEL SYSTEM, GASOLINE:STORAGE:TANK ASSEMBLY:FILLER PIPE AND CAP","mfr_system":null,"summary":"REDUCED ENGINE PERFORMANCE (REPLACE FUEL TANK CAP). *TW","document":null,"url":"https://open.wenmarpro.com/bulletins/51245","components":[{"id":"fuel-system","name":"Fuel system","parent":null},{"id":"fuel-tank","name":"Fuel tank","parent":"fuel-system"}],"codes":[],"topics":[],"vehicles":[{"make":"GMC","model":"W4","year_from":1996,"year_to":1996,"match":"exact","vehicle_ids":["1996_gmc_w4"]}],"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":[]}