Chevrolet Express 2003–2004 — technical service bulletin
Bulletin SB-12167 · NHTSA communication 10050903 · issued Dec 1, 2012
Technical service bulletin
communication type
Fuel System, Gasoline
component
2003–2004
model years
4
vehicle entries
Official summary
Chevrolet/gmc: see document search button for owner letter. On some trucks, pipe may corrode due to road contaminates and water becoming rapped in protective conduit covering fuel filler pipe and presence of fuel odor might be observed due to possible perforation in pipe. Models 2003-2004 savana, express. *pe
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.