{"nhtsa_id":10156914,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2019-04-08","date":"2019-03-07","document_id":"PIP5630","mfr_campaign":null,"replaces":null,"component":"ENGINE","mfr_system":null,"summary":"This Preliminary information communicates A vehicle may have a concern of no oil pressure and/or P0521 set. the releif valve in the pump is sticking or the number 1 main bearing is damaged. Drop oil pan and confirm #1 main is spun or not. If bearings are OK Then change oil pump.","document":{"url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10156914-0001.pdf","alternate_url":"https://static.nhtsa.gov/odi/tsbs/2019/MC-10156914-9999.pdf","confirmed":false},"url":"https://open.wenmarpro.com/bulletins/10156914","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P0521"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"EXPRESS","year_from":2019,"year_to":2019,"match":"exact","vehicle_ids":["2019_chevrolet_express"]},{"make":"CHEVROLET","model":"SILVERADO 4500","year_from":2019,"year_to":2019,"match":"base","vehicle_ids":["2019_chevrolet_silverado"]},{"make":"CHEVROLET","model":"SUBURBAN","year_from":2019,"year_to":2019,"match":"exact","vehicle_ids":["2019_chevrolet_suburban"]},{"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":[]}