Chevrolet Colorado 2004 — technical service bulletin
Bulletin 01939 · NHTSA communication 10006565 · issued Jan 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004
model years
9
vehicle entries
Official summary
4.3 4.8 5.3 6.0 lr4 lu3 lm7 l59 lq4 lq9 engines- evap code p0442. *mr
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.