9000 Aero L4-2290cc 2.3L DOHC Turbo EFI (1996)
Valves are illustrated in their positions when the selector lever is set to neutral.
There are three shift valves, one for each gear shifting stage. Shift valve 1-2 provides up shift from gear one to two and downshift from gear two to one.
The same principle applies to shift valves 2-3 and 3-4.
Up shift and downshift take place by exposing or closing the passages used for directing system pressure to the control elements. This takes place by the
valves changing over from position 1 to position 2 when actuated by governor pressure and throttle pressure.
1ST + R Lock-Up Valve
Valves are illustrated in their positions when the selector lever is set to neutral.
This valve has 3 functions: