P0455 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.
| 0398 | 2003-09-17. Service bulletin. MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION WITH DIAGNOSTIC TROUBLE CODES P0442, P0455, P0456, P0457, P1442 OR CHECK FUEL CAP LAMP ILLUMINATED WITH DIAGNOSTIC TROUBLE CODE P0457. *TT |
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| 15605 | 2002-04-19. Service bulletin. SOME VEHICLES MAY EXHIBIT DRIVEABILITY CONDITIONS AND / OR CHECK ENGINE LAMP ILLUMINATED WITH A DIAGNOSTIC TROUBLE P0455 (GROSS LEAK DETECTED). *TT |
| 15504 | 2002-04-11. Service bulletin. SOME VEHICLES MAY EXHIBIT DRIVEABILTY CONDITIONS AND/OR CHECK ENGINE LAMP ILLUMINATED WITH A DIAGNOSTIC TROUBLE CODE P0455 (GROSS LEAK DETECTED). *TT |
| 99234 | 2000-03-09. Service bulletin. INFORMATION ON DIAGNOSING A VEHICLE WITH MALFUNCTION INDICATOR LAMP ILLUMINATED AND DIAGNOSTIC TROUBLE CODES P0442 AND P0455 STORED IN CONTINUOUS MEMORY. *TT |
4 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.