Ford Mustang 1999–2001 — technical service bulletin
Bulletin 01108 · NHTSA communication 620164 · issued May 28, 2001
Technical service bulletin
communication type
Power Train
component
1999–2001
model years
3
vehicle entries
Official summary
A whining noise heard from the rear during coastdown from 97 to 56 km/h (60 to 35 mph). This noise will disappear when the vehicle slows down below 56 km/h (35 mph). This may be caused by variation in tooth contact between the differential ring gear, pinion, and by the inability of the original upper control arm bushings to isolate the noise. *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.