{"nhtsa_id":10164101,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-08-26","date":"2019-06-11","document_id":"N192220030","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:DIESEL; FUEL SYSTEM, GASOLINE; FUEL SYSTEM, DIESEL","mfr_system":null,"summary":"N192220030. Certain vehicles, equipped with a 6.6L diesel engine (RPO L5D), may have a condition in which the incorrect amount of silicone fluid was added to the fan drive assembly. With low fluid, the vehicle may not meet the cooling requirement needed to achieve the max tow rating and may also lead to poor control of the fan drive speeds which could affect cooling performance. Dealers are to replace the fan blade clutch.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10164101-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10164101-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10164101","components":[{"id":"engine","name":"Engine","parent":null},{"id":"fuel-system","name":"Fuel system","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 4500","year_from":2019,"year_to":2019,"match":"base","vehicle_ids":["2019_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SILVERADO 6500","year_from":2019,"year_to":2019,"match":"base","vehicle_ids":["2019_chevrolet_silverado"]},{"make":"CHEVROLET","model":"duplicate SILVERADO 5500","year_from":2019,"year_to":2019,"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":[]}