Chevrolet Impala 2001–2002 — technical service bulletin
Bulletin 030604009 · NHTSA communication 10000931 · issued Jan 1, 2003
Technical service bulletin
communication type
Engine and Engine Cooling
component
2001–2002
model years
2
vehicle entries
Official summary
Engine deceleration hesitation, loss of power on vehicles with police package. *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.