{"nhtsa_id":621302,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-09-17","date":"2000-03-09","document_id":"00400","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT A TAPPING NOISE WHICH CAN BE HEARD COMING FROM THE REAR OF THE VEHICLE WITHIN THE FIRST 10 MINUTES AFTER A COLD START. THIS CONCERN MAY BE CAUSED BY THE OPERATION OF THE CDCV (CANISTER DRAIN CUT VALVE) SOLENOID DURING THE EVAPORATIVE EMISSION MONITOR. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/621302","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"MAZDA","model":"626","year_from":1998,"year_to":1998,"match":"exact","vehicle_ids":["1998_mazda_626"]}],"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":[]}