Chevrolet Cavalier 2003–2004 — technical service bulletin
Bulletin 030604055 · NHTSA communication 10004317 · issued Oct 1, 2003
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003–2004
model years
9
vehicle entries
Official summary
Service engine soon/check engine light illuminated, misfire or roughness, diagnostic trouble code (dtc) p0300 set. *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.