Firebird V8-305 5.0L VIN E (1992)
Clutch: Customer Interest
A/T - Click/Whine In Third or Fourth Gear
Bulletin Number: 93-7-20
Reference Number: 277121R
Publish Date: 11/93
Subject:
CLICK/WHINE IN THIRD/FOURTH GEAR
(INSTALL NEW LOW AND REVERSE CLUTCH FIBER PLATES)
Models Affected:
1988-93 FIREBIRD WITH 4L60 (MD8)
1988-89 SAFARI WAGON 700R4 (MO8)
THIS BULLETIN IS BEING REVISED TO ADD THE 1993 MODEL YEAR, ADD THE "NOTE" IN CORRECTION SECTION AND CHANGE
THE SERVICE PARTS INFORMATION. THIS BULLETIN CANCELS AND REPLACES BULLETIN 92-7-14 ISSUED 4/92.
CONDITION:
Some 1988-93 vehicles with HYDRA-MATIC 4L60 transmissions built before November 19, 1992 (Julian Date 324) may exhibit a clicking or whining
noise in third and fourth gear. A customer may also describe it as a ticking or rattle noise.
CAUSE:
The clicking noise is caused by transmission fluid passing over the friction plates of the low and reverse clutch. The fluid causes them to vibrate when
the low and reverse clutch is not applied (third and fourth gear).
CORRECTION:
