{"nhtsa_id":601216,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1998-07-08","date":"1998-04-16","document_id":"98024","mfr_campaign":null,"replaces":null,"component":"FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM","mfr_system":null,"summary":"EXHIBITING A CONDITION IN WHICH THE FOUR FUEL INJECTION TIMING GEAR BOLTS MAY LOOSEN OR FATIGUE DUE TO THE TORQUE OF THE CRANKSHAFT. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/601216","components":[{"id":"fuel-system","name":"Fuel system","parent":null},{"id":"fuel-injector","name":"Fuel injection","parent":"fuel-system"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"W3500","year_from":1999,"year_to":1999,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"W4500","year_from":1999,"year_to":1999,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"W5500","year_from":1999,"year_to":1999,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"W3500","year_from":1999,"year_to":1999,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"W4500","year_from":1999,"year_to":1999,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"W5500","year_from":1999,"year_to":1999,"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":[]}