Regal V6-252 4.1L (1984)
Radio/Stereo Noise Filter: All Technical Service Bulletins
Radio - Alternator Whine or Whistle
Bulletin
84-9-12
Date Oct.. '84
Ref. No. 85-004-9
SUBJECT:
RADIO NOISE
MODELS AFFECTED: 1984 REGALS
Alternator whine or whistle may be encountered on the FM band. This condition can be caused by "noise" entering through the fourteen volt power line.
The whine can be corrected by the installation of a fourteen volt line filter package, Part Number 1224205.* The Diagnostic Chart in Section 9
Accessories, should first be used to determine whether or not the noise source is the alternator prior to adding this package.
NOTE:
The Service Manager's Guide on Sound Service (1984 edition) published by Delco Radio should be consulted for additional help on radio
noise conditions.
*
Installation instructions are provided in the kit.