Chevrolet Colorado 2004–2005 — technical service bulletin
Bulletin 3039 · NHTSA communication 10011688 · issued Jan 28, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004–2005
model years
4
vehicle entries
Official summary
Flashing service engine soon light with possible misfire and p0300-p0304 diagnostic trouble code. *eh engine exchange program. *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.