Chevrolet Express 2004–2005 — technical service bulletin
Bulletin 3304 · NHTSA communication 10017141 · issued Oct 26, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2005
model years
4
vehicle entries
Official summary
Upper radiator hose may have a coolant leak, because it has rubbed through on the fan shroud. *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.