Chevrolet Colorado 2004–2005 — technical service bulletin
Bulletin 3231 · NHTSA communication 10011942 · issued Feb 8, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2005
model years
4
vehicle entries
Official summary
Supplement to 04-06-04-081 - part number information - 2004 and 2005 3.5l l52 5 cylinder engines. *tt
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.