{"nhtsa_id":610663,"type":"service_bulletin","type_name":"Service bulletin","date_added":"2000-05-10","date":"1999-07-01","document_id":"6506","mfr_campaign":null,"replaces":null,"component":"ENGINE AND ENGINE COOLING:EXHAUST SYSTEM","mfr_system":null,"summary":"SOME VEHICLES MAY EXHIBIT AN EXHAUST MOAN / ROAR HEARD ON SLIGHT ACCELERATION AND AT SPEEDS NEAR 42 MPH FOR SINGLE EXHAUST AND NEAR 62 MPH ON DUAL EXHAUST CARS. *TT","document":null,"url":"https://open.wenmarpro.com/bulletins/610663","components":[{"id":"engine","name":"Engine","parent":null},{"id":"exhaust-emissions","name":"Exhaust and emissions","parent":null}],"codes":[],"topics":[],"vehicles":[{"make":"FORD","model":"CROWN VICTORIA","year_from":1998,"year_to":1999,"match":"exact","vehicle_ids":["1998_ford_crown-victoria","1999_ford_crown-victoria"]},{"make":"MERCURY","model":"GRAND MARQUIS","year_from":1998,"year_to":1999,"match":"exact","vehicle_ids":["1998_mercury_grand-marquis","1999_mercury_grand-marquis"]}],"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":[]}