Chevrolet Silverado 2001–2004 — technical service bulletin
Bulletin 030604049 · NHTSA communication 10004311 · issued Oct 1, 2003
Technical service bulletin
communication type
Fuel System, Gasoline
component
2001–2004
model years
8
vehicle entries
Official summary
Revised fuel system diagnosis pickup. *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.