Ford Ranger 1998–1999 — technical service bulletin
Bulletin 8377 · NHTSA communication 612775 · issued Mar 1, 2000
Technical service bulletin
communication type
Power Train
component
1998–1999
model years
2
vehicle entries
Official summary
Experience a growling noise from the front axle in 4x2 or 4x4 mode after engaging 4x4 mode and then disengaging within 40 seconds. *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.