{"nhtsa_id":632470,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-07-16","date":"2002-04-04","document_id":"TL25","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:DIESEL","mfr_system":null,"summary":"SUBJECT REGARDING FE6 CYLINDER HEAD PRESSURE TEST KIT FOR 1986 - 2002 FE6 / FE6T / FE6TZ / FE6TA 12-VALVE ENGINE MODELS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/632470","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"NISSAN DIESEL","model":"NISSAN DIESEL","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":[]}