LeSabre Estate Wagon V8-350 5.7L DSL (1982)
Torque Converter Clutch: All Technical Service Bulletins
TCC - Elimination of the Valve Train
Model Year
1983
Bulletin No.
83-146
File In Group
70
Number
21
Date
July '83
SUBJECT:
ELIMINATION OF THE TORQUE CONVERTER CLUTCH VALVE TRAIN
MODELS AFFECTED: 1982 AND 1983 THM 200-4R TRANSMISSIONS
FIGURE 1 - PAST DESIGN CONTROL VALVE ASSEMBLY WITH T.C.C. VALVE TRAIN
FIGURE 2 - NEW DESIGN CONTROL VALVE ASSEMBLY WITH T.C.C. VALVE TRAIN ELIMINATED
Beginning late in the 1982 model year, the THM 200-4R transmission control valve assemblies were changed to eliminate the Torque Converter Clutch
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 #2) will have a solid bushing in it to direct oil flow.
