Chevrolet Silverado 2002 — technical service bulletin
Bulletin 042202 · NHTSA communication 636566 · issued Apr 22, 2002
Technical service bulletin
communication type
Fuel System, Gasoline
component
2002
model years
2
vehicle entries
Official summary
This message states that some vehicles may have installed a diesel fuel cap with the d on the cap instead of the required gasoline fuel cap possibly causing vehicles to exhibit a p0442 code. *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.