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RecallGazette

Vehicle problems, recalls & safety intelligence

Chevrolet Avalanche 1999–2008technical service bulletin

Bulletin PIP3259J · NHTSA communication 10112681 · issued Dec 17, 2012

Technical service bulletin
communication type
Power Train
component
1999–2008
model years
60
vehicle entries

Official summary

This Preliminary Information communication provides information to the technician about vehicles that may have a planetary gear whine noise in first and second gear. Technician should compare the noise to a like vehicle. Technician will need to check the build date of the transmission, if it was built after 09/01/2003 and it is determined that a vehicle has an abnormal amount of noise, perform the rear unit end play check. Technician will replace the output planetary gear set if end play is out of specification. The transmission assembly will need to be replaced if the end play is with in spec

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.