{"nhtsa_id":637184,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-11-20","date":"2002-06-04","document_id":"040602","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL","mfr_system":null,"summary":"SUBJECT REGARDING CORRECTION TO EVAP VENT CANISTER SOLENOID PART NUMBER FOR 1999 - 2002 MODELS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/637184","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO","year_from":null,"year_to":null,"match":"exact","vehicle_ids":[]},{"make":"GMC","model":"SIERRA","year_from":null,"year_to":null,"match":"exact","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":[]}