No Lock – up

No Lock – up

The pressurised fluid regulated by the modulator is applied to both ends of the lock – up shift valve and on the left side of the lock – up control valve. Under this condition, the pressures working on both ends of the lock – up shift valve are equal and the shift valve is moved to the right by the tension of the valve spring alone. The fluid from the oil pump flows through the left side of the lock – up clutch to the torque converter; i.e., the lock – up clutch is not applied.

Note: The components shown in this illustration have the same reference letters as those on the preceding pages.

Key to hydraulic flow diagram

1. P Lock – up control solenoid valve A
2. Q Lock – up control solenoid valve B
3. V Lock – up shift valve
4. W Lock – up control valve
5. Z Torque converter
6. DD Lock – up timing valve
7. EE Torque converter check valve
8. FF Regulator valve
9. II Oil cooler relief valve
10. JJ Relief valve
11. KK Oil pump
12. MM Oil cooler
13. XX Modulator pressure
14. YY Line pressure