Chevrolet Kodiak 2004–2005 — technical service bulletin
Bulletin 3129A · NHTSA communication 10009992 · issued Jan 1, 2004
Technical service bulletin
communication type
Fuel System, Gasoline
component
2004–2005
model years
6
vehicle entries
Official summary
Smoke, fuel knock, surging, and high injector balance rates. *tc to include 2005 chevrolet kodiak and gmc topkick. *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.