{"nhtsa_id":10009948,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2004-11-03","date":"2004-01-01","document_id":"3109","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING","mfr_system":null,"summary":"ENGINEERING IS INVESTIGATING THE 04 6.6L LB7 INJECTORS FOR CONCERNS OF DTC P1093 AND HIGH RETURN LINE FLOW RATES. *SC","document":null,"url":"https://open.wenmarpro.com/bulletins/10009948","components":[{"id":"engine","name":"Engine","parent":null}],"codes":["P1093"],"topics":[],"vehicles":[{"make":"CHEVROLET","model":"KODIAK","year_from":2004,"year_to":2004,"match":null,"vehicle_ids":[]},{"make":"CHEVROLET","model":"SILVERADO","year_from":2004,"year_to":2004,"match":"exact","vehicle_ids":["2004_chevrolet_silverado"]},{"make":"GMC","model":"SIERRA","year_from":2004,"year_to":2004,"match":"exact","vehicle_ids":["2004_gmc_sierra"]}],"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":[]}