{"nhtsa_id":615086,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-12-27","date":"1998-07-01","document_id":"866208A","mfr_campaign":null,"replaces":"866208","component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"SOME MEDIUM DUTY TILT CAB TRUCKS WITH 3116 CATERPILLAR DIESEL ENGINES EQUIPPED WITH 26 INCH FAN BLADES MAY EXHIBIT THE ENGINE OVERHEAT LAMP ON, AND THE TEMPERATURE GAUGE IN THE RED ZONE. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/615086","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"T6500","year_from":1997,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"T7500","year_from":1997,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"T6500","year_from":1997,"year_to":1998,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"T7500","year_from":1997,"year_to":1998,"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":[]}