S10/T10 Blazer 4WD V6-262 4.3L (1989)
Clutch: All Technical Service Bulletins
A/T - 4L60 No Reverse/Delayed Reverse
Number:
91-493-7A
Section:
7A
Date:
MARCH 1992
Corporate Bulletin No.: 277111
ASE No.: A2
Subject:
NO REVERSE/DELAYED REVERSE COLD
Model and Year:
1989-91 CAPRICE CAMARO AND CORVETTE
1989-91 C/K, R/V, S/T, G AND M TRUCKS
1990 L TRUCKS WITH 4L60 AUTOMATIC TRANSMISSION
TRANSMISSION APPLICATION:
1989-91 HYDRA-MATIC 4L60 (MD8)
TRANSMISSION MODELS:
All
SUBJECT:
No Reverse/Delayed Reverse Cold
(install Long Lipped Reverse
Input Clutch Piston Outer Seal)
VEHICLE APPLICATIONS:
B, F, Y, - Cars
C/K, S/T, R/V - Trucks
G, L, M - Vans
Bulletin Covers:
Some 1989-1991 HYDRA-MATIC 4L60 (THM 700-R4) transmissions may exhibit a "no reverse" or "delayed reverse" condition when outside
temperatures are below zero degrees Fahrenheit.
Service Information:
A transmission is considered to have a delayed reverse condition if it takes longer than three seconds for the transmission to engage when shifted into the
reverse range.
