Ford Expedition 1999 — technical service bulletin
Bulletin 12757 · NHTSA communication 607074 · issued May 1, 1999
Technical service bulletin
communication type
Power Train
component
1999
model years
2
vehicle entries
Official summary
Some vehicles built after 2/1/1999 equipped with 5.4l-2v engines and 4r100 transmissions may exhibit a driveline clunk / jerk during tip-in from closed throttle at vehicle speeds above 43 mph in 4th gear gear and normal transmission operating temperatures. *tt
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.