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Description
Hydraulic Flow (cont'dl
3rd Gear
The flow of fluid up to the 1-2 and 2-3 shift valve is the same as in 2nd gear. As the speed of the vehicle reaches the
prescribed value. the shift control solenoid valve B is turned OFF (shift control solenoid valve A remains ON). The 2-3
shift valve is then moved to the left, uncovering the port leading to the 3rd clutch. Since the 3-4 shift valve is moved
to the right to vover the port to the 4th clutch, the 3rd clutch is turned on.
Fluid flows by way of:
-
Line pressure (4) rj) 1-2 Shift Valve + 2-3 Shift Valve - 3rd Clutch Pressure (31) r 3-4 Shift Valve
(not controlledl - 3rd Clutch Pressure (30) + 3rd Clutch
The hydraulic pressure also flows to the lst clutch. However, no power is transmitted because of the one-way clutch
as in the 2nd gear.
NOTE: When used, "|eft" or "right" indicates direction on the hydraulic circuit.
14-34
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Troubleshooting
