1998 Ford Expedition engine and engine cooling problems
127 owner complaints filed with NHTSA name the engine and engine cooling on the 1998 Ford Expedition — 15% of all complaints for this model year.
What owners report
“Coil and spark plug blow out of engine when truck was started (1998). The expedition has been known to have this issues as well as other issues. Why is ford not taking responsibility; so far accident avoided. I had to replace one coil pack each year so far but this was the worse. I needed the…”
filed Apr 2, 2012
“#6 spark plug blew out of cyl head. Reinstalled and replaced coil since it broke mount. Put back in service and next plug in bank (#7) blew within 10 miles at approx same speed. When searching the internet this is a common problem with fords modular engine prior to 04. When they make special tools…”
filed Feb 12, 2012
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 and Engine Cooling problems in other Expedition years
| Year | Reports | Share |
|---|---|---|
| 2023 Expedition | 1 | 2% |
| 2021 Expedition | 3 | 1% |
| 2020 Expedition | 4 | 1% |
| 2019 Expedition | 31 | 7% |
| 2018 Expedition | 25 | 7% |
| 2017 Expedition | 5 | 1% |
| 2016 Expedition | 3 | 1% |
| 2015 Expedition | 1 | 1% |
| 2013 Expedition | 1 | 1% |
| 2011 Expedition | 2 | 3% |
| 2010 Expedition | 3 | 5% |
| 2008 Expedition | 3 | 2% |
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.