Chevrolet Express 2003 — technical service bulletin
Bulletin 04016 · NHTSA communication 10006920 · issued Apr 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003
model years
4
vehicle entries
Official summary
Evaporative emission system diagnostic disabled by incorrect fuel level reference. Recall bulletin. *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.