Chevrolet Silverado 2001 — technical service bulletin
Bulletin 01058 · NHTSA communication 620848 · issued Aug 6, 2001
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001
model years
2
vehicle entries
Official summary
General motors has decided that certain vehicles may exhibit a condition in which the engine connecting rod bolts may be loose, which can cause an engine knock noise and possible catastrophic damage to the engine. *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.