Chevrolet Silverado 2006–2007 — technical service bulletin
Bulletin 4087 · NHTSA communication 10021014 · issued Feb 22, 2007
Technical service bulletin
communication type
Steering
component
2006–2007
model years
8
vehicle entries
Official summary
Power steering pump leak/ incorrect mounting bolt. *kb
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.