Chevrolet C Series (light) 1994–1995 — technical service bulletin
Bulletin 476304 · NHTSA communication 39084 · issued Jan 1, 1995
Technical service bulletin
communication type
Fuel System, Gasoline
component
1994–1995
model years
4
vehicle entries
Official summary
Black smoke only after injection pump replacement. *tw
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.