Chrysler 300M 1998–1999 — technical service bulletin
Bulletin 140299 · NHTSA communication 606107 · issued Jun 18, 1999
Technical service bulletin
communication type
Engine and Engine Cooling
component
1998–1999
model years
9
vehicle entries
Official summary
Experiencing hiss noise from engine when idling. *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.