1998 Ford Expedition engine problems
16 owner complaints filed with NHTSA name the engine on the 1998 Ford Expedition — 2% of all complaints for this model year.
What owners report
“Takata recall: the spark plugs have blown out of the engine block. They have been repaired 3 times. Each time, it smells of an electrical line is burning, the instrument cluster goes erratic and they zeros out and doesn't move. This has happened while driving on city and highways.”
filed May 9, 2019
“5.4l gas engine. Spark plugs have blown out of 2 different cylinders in 2 months. I have found only that this is a known issue for several models with this engine including the f-150. Ford had done nothing to address this faulty engine design. Both times my plugs blew out I was accelerating from a…”
filed Dec 26, 2018
Verbatim excerpts from complaints filed with NHTSA. Reports are not independently verified.
Related service bulletins
Some 1997-2008 vehicles equipped with a 4.6l 2v, 5.4l 2v, or 6.8l 2v engine--spark plug thread repair procedure--not covered under new vehicle limited warranty. *nj this includes f-53 motorhome chassis. Updated 2/23/10…
07212 · Service Bulletin/Repair Instructions · issued Oct 1, 2007Wds cop kit diagnostic tip - coil on plug (cop) ignition systems - engine misfire or rough running. *tt
041601 · Service Bulletin/Repair Instructions · issued Nov 14, 2005Use of stainless steel exhaust studs in service for 5.4l 2v engine. *tt
0554 · Service Bulletin/Repair Instructions · issued Mar 21, 2005Intermittent rough idle - non-commanded egr (exhaust gas recirculation valve) flow. *tt
05417 · Service Bulletin/Repair Instructions · issued Mar 7, 2005Engine misfire or running - coil on plug (cop) ignition systems - wds cop kit diagnostic tips. To include various 2005 models. * ar this article 04161 supersedes tsb 03-14-04.
031404 · Service Bulletin/Repair Instructions · issued Aug 23, 2004
Engine problems in other Expedition years
| Year | Reports | Share |
|---|---|---|
| 2025 Expedition | 1 | 4% |
| 2024 Expedition | 5 | 7% |
| 2023 Expedition | 6 | 9% |
| 2022 Expedition | 10 | 9% |
| 2021 Expedition | 54 | 24% |
| 2020 Expedition | 49 | 13% |
| 2019 Expedition | 107 | 23% |
| 2018 Expedition | 97 | 26% |
| 2017 Expedition | 38 | 11% |
| 2016 Expedition | 37 | 17% |
| 2015 Expedition | 31 | 19% |
| 2014 Expedition | 10 | 14% |
Other reported problem areas on the 1998 Ford Expedition
Counts are unique NHTSA complaints naming this component group. Complaints are unverified owner reports; mileage is computed only from complaints that included a usable odometer reading.