Chevrolet Trailblazer 2002 — technical service bulletin
Bulletin 3285 · NHTSA communication 10013373 · issued Apr 18, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2002
model years
3
vehicle entries
Official summary
A rough idle, service engine soon light, reduced engine power and diagnostic trouble codes p0507 and p1514. *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.