90 L5-2309cc 2.3L SOHC (NG) (1988)
Compressor Clutch Diode HVAC: Technical Service Bulletins
Speakers - Pop, Erratic A/C Display, Engine Misfires
Group:
87
Number:
92-02
Date:
04/08/92
Subject:
Pop Or Click In BOSE Speakers, Incorrect Or Erratic A/C Control Head Display, Engine Missfires - When A/C Clutch Disengages
Model(s):
100/200/V8/80/90
M.Y. 1988-1991
THIS TECHNICAL BULLETIN SUPERSEDES TECHNICAL BULLETIN GROUP 87, 91-05, 06/30/91.
Condition
Decay of magnetic field in A/C clutch may cause a voltage peak.
-
A pop or click may be heard in the BOSE speakers when A/C clutch cycles/turns off.
-
Temperature display may change or surpass normal range.
-
Backfire from engine and/or fault G28 in engine fault memory.
Production
A/C compressor clutch modified with zener diode and improved A/C compressor clutch control relay
As of: November 1990
VIN:
44 MN 024 295
4C MN 001 831