Chevrolet Blazer 2003 — technical service bulletin
Bulletin 3354 · NHTSA communication 10013489 · issued Apr 20, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2003
model years
4
vehicle entries
Official summary
Service engine soon (ses) lamp on with diagnostic trouble code (dtc) p0442 stored in power train control module (pcm) memory. P0442 diagnostics in service information may not detect a leak in the evap system. *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.