Automatic Transmission Description
This automatic transmission is a full automatic type with 3-speed plus overdrive (O/D).
The toque converter is a 3-element, 1-step and 2-phase type and is equipped with an electronically controlled lock-up mechanism. The gear shift device consists of 3 sets of planetary gear units, 3 disc type clutches, 4 disc type brakes and 3 one-way clutches. The gear shift is done by selecting one of 6 positions ("P", "R", "N", "D", "2" and "L") by means of the select lever installed on the floor. On the shift knob, there is an overdrive (O/D) cut switch which allows shift-up to the overdrive mode (except at 4L) and shift-down from the overdrive mode. Also, by using the P/N change switch located on the console box, it is possible to select the gear change timing of 2 modes, normal and power.
| Item | Specifications | |||
|---|---|---|---|---|
| Torque converter | Type | 3-element, 1-step, 2-phase type (with TCC (lock-up) mechanism) | ||
| Stall torque ratio | 2.0 | |||
| Oil pump | Type | Trochoid type oil pump | ||
| Drive system | Engine driven | |||
| Gear change | Type | Forward 4-step, reverse 1-step planetary gear type | ||
| Shift position | "P" range | Gear in neutral, output shaft fixed, engine start | ||
| "R" range | Reverse | |||
| "N" range | Gear in neutral, engine start | |||
| "D" range | Forward 1 st < -- > 2nd < -- > 3rd < -- > 4th (O/D) | |||
| (O/D ON) | automatic gear change | |||
| "D" range | Forward 1st < -- > 2nd < -- > 3rd automatic gear | |||
| (O/D OFF) | change | |||
| "2" range | (Normal mode) Forward 1st < -- > 2nd < -- > 3rd automatic gear change (Power mode) Forward 2nd < -- > 3rd automatic gear change and fixed at 2nd gear | |||
| "L" range | Forward 1st < -- > 2nd < -- > 3rd reduction, and fixed at 1st gear | |||
| Gear ratio | 1st (low gear) | 2.826 | ||
| 2nd (second gear) | 1.493 | |||
| 3rd (top gear) | 1.000 | |||
| 4th (overdrive gear) | 0.688 | |||
| Reverse (reverse gear) | 2.703 | |||
| Control elements | Wet type multi-disc clutch... 3 sets Wet type multi-disc brake... 4 sets One-way clutch... 3 sets |
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| Transfer | Hi: 1.000 Lo: 1.816 (4WD model only) |
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| Final gear reduction ratio (Differential) | 4.875 | |||
| Lubrication | Lubrication system | Force feed system by oil pump | ||
| Cooling | Cooling system | Radiator assisted cooling (water-cooled) | ||
| Fluid used | An equivalent of DEXRON®III | |||