{"nhtsa_id":10025667,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2008-08-28","date":"2008-01-01","document_id":"08-07-30-001","mfr_campaign":null,"replaces":null,"component":"POWER TRAIN:AUTOMATIC TRANSMISSION","mfr_system":null,"summary":"4L80E, MT1 AND 4L85E, MN8 SIMPLIFIED VALVE BODY RECONDITIONING INSTRUCTIONS, DTC P0741, P0742, P0752, P0752, P0756, P0757, P0894, HARSH OR DELAYED SHIFTS, SLIPS, NO DRIVE, NO REVERSE. *PE UPDATED 6/11/10. *PE","document":null,"url":"https://open.wenmarpro.com/bulletins/10025667","components":[{"id":"powertrain","name":"Transmission and driveline","parent":null},{"id":"automatic-transmission","name":"Automatic transmission","parent":"powertrain"}],"codes":["P0741","P0742","P0752","P0756","P0757","P0894"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"SILVERADO 3500","year_from":2001,"year_to":2006,"match":"base","vehicle_ids":["2001_chevrolet_silverado","2002_chevrolet_silverado","2003_chevrolet_silverado","2004_chevrolet_silverado","2005_chevrolet_silverado","2006_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA 2500","year_from":2001,"year_to":2005,"match":"base","vehicle_ids":["2001_gmc_sierra","2002_gmc_sierra","2003_gmc_sierra","2004_gmc_sierra","2005_gmc_sierra"]},{"make":"GMC","model":"SIERRA 3500","year_from":2001,"year_to":2006,"match":"base","vehicle_ids":["2001_gmc_sierra","2002_gmc_sierra","2003_gmc_sierra","2004_gmc_sierra","2005_gmc_sierra","2006_gmc_sierra"]},{"make":"GMC","model":"W3500","year_from":2004,"year_to":2008,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"W4500","year_from":2004,"year_to":2008,"match":null,"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":[]}