Chrysler Conquest 1988 Service Manual page 1159

AUTOMATIC TRANSMISSION - General information
21-35
PRESSURE REGULATOR VALVE
The pressure regulator valve automatically regulates the hydraulic pressure supplied to each element to a
pressure (line pressure) according to current vehicle speed and engine output (throttle valve opening).
MANUAL VALVE
This valve provides switching of oil ways that is linked to the selector lever. The valve causes either P, R, N, D,
2 or L range to be selected according to the lever operation.
IST-2ND SHIFT VALVE
This valve automatically switches oil ways between the 1st and 2nd speeds according to the governor
pressure and throttle pressure.
2ND-3RD SHIFT VALVE
This valve automatically switches oil ways between the 2nd and 3rd speeds according to the governor
pressure and throttle pressure.
PRESSURE MODIFIER VALVE
This valve controls the throttle pressure acting on the pressure regulator valve to reduce line pressure when
the vehicle is running at high speed.
1. Pressure regulating valve
2. Manual valve
3. 2nd-3rd shift valve
4. 1 st-2nd shift valve
5. Pressure modifier valve
6. 3rd-4th shift valve
7. Vacuum throttle valve
8. Throttle back-up valve
9. Solenoid downshift valve
10. Second lock valve
JATO05