{"nhtsa_id":39453,"type":"service_bulletin","type_name":"Service bulletin","date_added":"1995-11-01","date":"1993-12-01","document_id":"9311","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"L10 STC ENGINES BUILT PRIOR TO 05 APRIL 1993 AND WITH CPL BETWEEN 1558 AND 1562 MAY PRODUCE AN UNACCEPTABLE LEVEL OF WHITE SMOKE WHEN THE ENGINE IS OPERATED AT NO-LOAD HIGH RPM, OR LIGHT LOAD OPERATION. *TW","document":null,"url":"https://open.wenmarpro.com/bulletins/39453","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"CUMMINS","model":"CUMMINS","year_from":null,"year_to":null,"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":[]}