{"nhtsa_id":52935,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1997-11-13","date":"1997-07-01","document_id":"776001","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"INFORMATION CONCERNING ENGINE KNOCK/RATTLE OR TAP NOISE BEFORE ENGINE HAS REACHED OPERATING TEMPERATURE OR UNDER LIGHT LOAD CONDITIONS AT OPERATING TEMPERATURE (REPLACE PISTON AND/OR ROD ASSEMBLIES). AK","document":null,"url":"https://open.wenmarpro.com/bulletins/52935","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"BUICK","model":"CENTURY","year_from":1994,"year_to":1996,"match":"exact","vehicle_ids":["1994_buick_century","1995_buick_century","1996_buick_century"]},{"make":"CHEVROLET","model":"BERETTA","year_from":1994,"year_to":1996,"match":"exact","vehicle_ids":["1994_chevrolet_beretta","1995_chevrolet_beretta","1996_chevrolet_beretta"]},{"make":"CHEVROLET","model":"CAVALIER","year_from":1994,"year_to":1997,"match":"exact","vehicle_ids":["1994_chevrolet_cavalier","1995_chevrolet_cavalier","1996_chevrolet_cavalier","1997_chevrolet_cavalier"]},{"make":"CHEVROLET","model":"CORSICA","year_from":1995,"year_to":1996,"match":"exact","vehicle_ids":["1995_chevrolet_corsica","1996_chevrolet_corsica"]},{"make":"CHEVROLET","model":"S10","year_from":1994,"year_to":1997,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"SONOMA","year_from":1994,"year_to":1997,"match":"exact","vehicle_ids":["1994_gmc_sonoma","1995_gmc_sonoma","1996_gmc_sonoma","1997_gmc_sonoma"]},{"make":"OLDSMOBILE","model":"CIERA","year_from":1994,"year_to":1996,"match":null,"vehicle_ids":[]},{"make":"PONTIAC","model":"SUNFIRE","year_from":1995,"year_to":1995,"match":null,"vehicle_ids":[]},{"make":"PONTIAC","model":"SUNFIRE","year_from":1996,"year_to":1997,"match":"exact","vehicle_ids":["1996_pontiac_sunfire","1997_pontiac_sunfire"]}],"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":[]}