Ford Expedition 1999–2000 — technical service bulletin
Bulletin 13737 · NHTSA communication 612732 · issued Jan 1, 2000
Technical service bulletin
communication type
Unknown OR Other
component
1999–2000
model years
10
vehicle entries
Official summary
All vehicles may exhibit an inoperative or inaccurate speedometer, 4x4 light inoperative and/or dtc p1635 after a pcm has been replaced. *mjs
Vehicles covered
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.