{"nhtsa_id":630509,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2002-04-18","date":"2001-12-10","document_id":"01243","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:ENGINE:GASOLINE","mfr_system":null,"summary":"SOME BI-FUEL EQUIPPED VEHICLES MAY EXHIBIT REDUCED ENGINE POWER, RPM DIP OR IDLE SURGE GREATER THAN 200 RPM IMMEDIATELY FOLLOWING TIP-IN FROM A STOP OPERATING IN ALTERNATIVE FUEL MODE. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/630509","components":[{"id":"engine","name":"Engine","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"F-150","year_from":2000,"year_to":2001,"match":"exact","vehicle_ids":["2000_ford_f-150","2001_ford_f-150"]}],"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":[]}