Chevrolet Colorado 2004–2006 — technical service bulletin
Bulletin 3338A · NHTSA communication 10017089 · issued Oct 24, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2006
model years
7
vehicle entries
Official summary
Drive belt noise - adjust or replace idler pulley bracket. *tt potential alignment and belt issues. *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.