Chevrolet Silverado 1999 — technical service bulletin
Bulletin 99109 · NHTSA communication 605954 · issued May 4, 1999
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999
model years
2
vehicle entries
Official summary
Recall campaign regarding exhaust gas recirculation valve misbuilds. *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.