Ford Econoline 1997–1999 — technical service bulletin
Bulletin 12139 · NHTSA communication 613160 · issued Nov 1, 1998
Technical service bulletin
communication type
Engine and Engine Cooling
component
1997–1999
model years
16
vehicle entries
Official summary
Some vehicles equipped with 4.6l or 6.8l engines may exhibit a cold start engine noise until warmed up. *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.