Toyota Tundra 2007–2008 — technical service bulletin
Bulletin TSB-0121-08 · NHTSA communication 10033115 · issued Jun 30, 2008
Technical service bulletin
communication type
Power Train
component
2007–2008
model years
2
vehicle entries
Official summary
Toyota: some four wheel drive trucks may exhibit a condition where a cyclic noise can be heard from the front of the vehicle between 15 and 30 mph (24-48km/h) only when driving in 2wd. This noise can be described as a howl, growl, grind, or drone noise. Production changes have been implemented to help prevent this noise. *pe
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.