Ford Explorer Sport 2001 — technical service bulletin
Bulletin 8579 · NHTSA communication 613686 · issued Apr 1, 2000
Technical service bulletin
communication type
Service Brakes, Hydraulic
component
2001
model years
2
vehicle entries
Official summary
Some 4x4 vehicles may exhibit a repetitive thump / knock noise from the left front which is proportional to wheel speed when braking. *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.