Some vehicles equipped with 5.4L engines may exhibit a cold start engine knock concern until warmed up
Ford technical service bulletin 4981 for 1997-1999 Ford F-150, 1997-1999 Ford Expedition and 1997-1999 Ford F-250 and others.
- Bulletin number
- 4981
- Component
- Engine and engine cooling: engine: gasoline
- Summary
- Some vehicles equipped with 5.4l engines may exhibit a cold start engine knock concern until warmed up. Tt
Owners of these vehicles have filed 1,691 complaints in the engine category.
Vehicles covered
- Ford F-150 1997-1999 199719981999
- Ford Expedition 1997-1999 199719981999
- Ford F-250 1997-1999 199719981999
- Lincoln Navigator 1997-1999 199719981999
- Ford Econoline 1997-1999 199719981999
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