Hyundai Elantra 1999 — technical service bulletin
Bulletin 9920003 · NHTSA communication 6089257 · issued Sep 1, 1999
Technical service bulletin
communication type
Engine and Engine Cooling
component
1999
model years
1
vehicle entries
Official summary
Some vehicles with federal specification emission systems and on some vehicles may exhibit an exhaust drone or exhibit a buzzing noise at idle or at engine speeds up to 2500 rpm. *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.