Buick Regal 1993 — technical service bulletin
Bulletin 98033 · NHTSA communication 615100 · issued Oct 19, 1998
Technical service bulletin
communication type
Engine and Engine Cooling
component
1993
model years
4
vehicle entries
Official summary
Voluntary emission campaign involving the evaporative emission canister purge solenoid valve replacement and, convertible only, prom replacement. *tt
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.