EL Camino V6-229 3.8L (1982)
Torque Converter Clutch: All Technical Service Bulletins
TCC - Elimination of the Valve Train
Number:
83-I-102
Section:
VIIc
Date:
July, 1983
Subject:
ELIMINATION OF THE TORQUE CONVERTER CLUTCH VALVE TRAIN - 1982-83 THM 200-4R
TO:
ALL CHEVROLET DEALERS
Figure 1 - Past Design Control Valve Assembly with T.C.C. Valve Train
Beginning late in the 1982 model year, the THM 200-4R transmission control valve assemblies were changed to eliminate the Torque
Converter Valve Train (Figure 1). The computer command control unit (C-3) controls the converter clutch making the T.C.C. Valve Train
unnecessary. The new control valve assembly (Figure 1) , will have a solid bushing in it to direct oil flow.
When servicing any 1982 or 1983 THM 200-4R transmission that has a C-3 system (all except diesel and Canadian models), it is
important that the proper spacer plate and gaskets be used. Refer to the following charts for proper usage.
1982 THM 200-4R
Control Valve Assembly, Spacer
Model
Plate & Gasket Service Package
AA & AP
8634981
BY
8634977
OG
8634978
CQ
8634979
1983 THM 200-4R
Control Valve
Gasket
Spacer
Model
Assembly
Package
Plate
AA & AP
8639128
8634969
8639027
BR
8639129
8634969
8639023
BY & BT
8639133
8634969
8639023
OG
8639218
8634969
8639026
OZ
8639315
8634969
8639174
