Ford E-150 1997–1998 — technical service bulletin
Bulletin BC9674961001 · NHTSA communication 50534 · issued Oct 1, 1996
Technical service bulletin
communication type
Power Train
component
1997–1998
model years
3
vehicle entries
Official summary
Light to moderate axle noise (axle whine) at 50 to 65 mph (80 to 105 kph) during accels, decels or cruise may be due to axle noise being transmitted from the axle into the vehicle. *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.