{"nhtsa_id":10019582,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2006-03-31","date":"2005-12-01","document_id":"050604077","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE","mfr_system":null,"summary":"LACK OF POWER LU3 ENGINE) AT HIGH AMBIENT TEMPERATURES ONLY (IF NECESSARY, REPROGRAM PCM WITH NEW SERVICE CALIBRATION).*AK","document":null,"url":"https://open.wenmarpro.com/bulletins/10019582","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"AIRSTREAM","model":"SAFARI","year_from":2003,"year_to":2005,"match":null,"vehicle_ids":[]},{"make":"BLUE BIRD","model":"EXPRESS 4000","year_from":2003,"year_to":2004,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"ASTRO","year_from":2003,"year_to":2005,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"BLAZER","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_chevrolet_blazer","2004_chevrolet_blazer"]},{"make":"CHEVROLET","model":"EXPRESS 2500","year_from":2005,"year_to":2005,"match":"base","vehicle_ids":["2005_chevrolet_express"]},{"make":"CHEVROLET","model":"SILVERADO","year_from":2003,"year_to":2005,"match":"exact","vehicle_ids":["2003_chevrolet_silverado","2004_chevrolet_silverado","2005_chevrolet_silverado"]},{"make":"GMC","model":"JIMMY","year_from":2003,"year_to":2004,"match":null,"vehicle_ids":[]},{"make":"GMC","model":"SAVANA","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_gmc_savana","2004_gmc_savana"]},{"make":"GMC","model":"SIERRA","year_from":2003,"year_to":2005,"match":"exact","vehicle_ids":["2003_gmc_sierra","2004_gmc_sierra","2005_gmc_sierra"]},{"make":"GMC","model":"SONOMA","year_from":2003,"year_to":2004,"match":"exact","vehicle_ids":["2003_gmc_sonoma","2004_gmc_sonoma"]},{"make":"QUALITY COACH","model":"SAVANA","year_from":2005,"year_to":2005,"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":[]}