Chevrolet Express 2003 — technical service bulletin
Bulletin 040604009 · NHTSA communication 10008670 · issued Mar 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003
model years
2
vehicle entries
Official summary
Reduced power, intermittent hesitation, stall in high altitude/high ambient temperatures. *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.