Service bulletins for the 1998 Ford Explorer
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.
352 on file from NHTSA, as of 2026-10-19.
About P0420 on the 1998 Ford Explorer: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: P0420 are shown. Show all
| 03251 | 2004-07-26. Service bulletin. ELECTRICAL SYSTEM. DRIVEABILITY-MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED-DIAGNOSTIC TROUBLE CODES (DTC'S) P0420 AND/OR P0430. *MJ |
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| 0475 | 2004-07-23. Service bulletin. ELECTRICAL SYSTEM. DRIVEABILITY-MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATED-DIAGNOSTIC TROUBLE CODES (DTC'S) P0420 AND/OR P0430. *MJ |
| 17312 | 2004-07-23. Service bulletin. ELECTRICAL SYSTEM. MALFUNCTION INDICATOR LAMP (MIL) ON WITH DIAGNOSTIC TROUBLE CODES P0420 AND/OR P0430. *TT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.