P0304 on the 1999 Ford Expedition
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
Nobody has written a description of this code yet.
| 6232 | 2000-11-03. Service bulletin. SOME VEHICLES MAY DEVELOP A COOLANT LEAK AT THE WORM GEAR CLAMP LOCATED AT THE JOINT BETWEEN THE METAL INTAKE COOLANT TUBE AND THE COIL RESULTING IN ENGINE MISFIRE WITH DIAGNOSTIC TROUBLE CODE P0304 AND / OR ROUGH IDLE. *TT |
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1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.