LeSabre V6-181 3.0L (1986)
Torque Converter Clutch: All Technical Service Bulletins
1985 or 1986 THM 440-T4 Transaxle
FIGURE 1 - THM 440-T4 TRANSAXLE I.D. INFORMATION
A 1985 or 1986 THM 440-T4 transaxle (refer to Figure 1) may exhibit delayed forward engagement, slipping on takeoff from stops, and/or a 2-3 upshift
bump or shudder. These conditions may be caused by leakage in the 1-2 servo circuit, which controls apply and release of the 1-2 band.
FIGURE 2 - SERVO PIPE TO CASE SEALS
