Chevrolet Trailblazer 2002 — technical service bulletin
Bulletin 03019 · NHTSA communication 10003392 · issued Jun 1, 2003
Technical service bulletin
communication type
Engine and Engine Cooling
component
2002
model years
3
vehicle entries
Official summary
Special policy adjustment 03019 - 4.2l bore liner cracking resulting in engine noise, poor performance, and/or stalls with no engine restart. *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.