Chevrolet Silverado 2002–2004 — technical service bulletin
Bulletin 050604029 · NHTSA communication 10017336 · issued Jun 1, 2005
Technical service bulletin
communication type
Engine and Engine Cooling
component
2002–2004
model years
15
vehicle entries
Official summary
Flexible fuel (rpo l59) rough idle, misfire, malfunction indicator lamp diagnostic trouble code p0300. *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.