Caprice Wagon RWD V8-305 5.0L (1991)
Radio/Stereo: All Technical Service Bulletins
Bose Radio - Poor Sound Quality
Number:
91-93-9A
Section:
9A
Date:
October 1990
Corp. Bulletin No.: 039006
Subject:
SOUND QUALITY OF BOSE RADIO
Model and Year:
1991 CAPRICE
TO:
ALL CHEVROLET DEALERS
Condition:
The BOSE radio system may not have sufficient sound quality on the 1991 B model with BOSE radio (RPO UQ4). The equalization may be inadequate
and the bass response may be limited.
Cause:
The original amplifier (P/N 16149121) had limited bass response and equalization. A new amplifier assembly design was used after VIN M W145367.
Correction:
Replace the amplifier assembly, located in the package shelf near the speakers, with P/N 16155131. Follow the directions in the Service Manual.
Part is currently available from GMSPO.
Warranty Information:
Labor Operation:
R0896
FAILURE CODE:
92
See applicable labor time guide for labor hours.