{"nhtsa_id":10154563,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-03-18","date":"2018-12-04","document_id":"PIP5612","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This Preliminary information communicates A vehicle may have a humming, whining or whistle noise from engine bellhousing area. This could be caused by a restriction in the PCV system","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10154563-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10154563-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10154563","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 1500","year_from":2019,"year_to":2019,"match":"base","vehicle_ids":["2019_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 1500","year_from":2019,"year_to":2019,"match":"base","vehicle_ids":["2019_gmc_sierra"]}],"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":[]}