Chevrolet Silverado 2004 — technical service bulletin
Bulletin 01701 · NHTSA communication 10006395 · issued Jan 1, 2004
Technical service bulletin
communication type
Engine and Engine Cooling
component
2004
model years
5
vehicle entries
Official summary
4.8 5.3 lm4 lm7 lr4 engine - with o2 sensor codes p0135, p0141, p0155, p0161. Sit bulletin 1452753. *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.