{"nhtsa_id":10145477,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2018-10-15","date":"2018-09-12","document_id":"PIP5587","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"This Preliminary information communicates A vehicle may come into the dealer with a lean running concern and/or air leak noise from the PCV.The air rush or whistlingnoise is caused by the fixed orifice PCV.There is not a correction for this noiseand should be considered to be normal.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10145477-9999.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2018/MC-10145477-0001.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10145477","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":[]}