{"nhtsa_id":623904,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2001-10-31","date":"2001-09-01","document_id":"010730026","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER","mfr_system":null,"summary":"SOME OWNERS MAY COMMENT ON A TORQUE CONVERTER CLUTCH (TCC) SURGE / CHUGGLE BETWEEN 72-96 KM/H (45 - 60 MPH) UNDER A LIGHT LOAD WITH THE ENGINE AT OPERATING TEMPERATURE AND TCC APPLIED. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/623904","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"},{"id":"torque-converter","name":"Torque converter","parent":"powertrain"}],"codes":[],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"CAVALIER","year_from":2001,"year_to":2001,"match":"exact","vehicle_ids":["2001_chevrolet_cavalier"]},{"make":"PONTIAC","model":"SUNFIRE","year_from":2001,"year_to":2001,"match":"exact","vehicle_ids":["2001_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":[]}