Mitsubishi Galant 9G. Manual — part 481

23A-2

SPECIAL TOOLS. . . . . . . . . . . . . . . .

23A-361

ON-VEHICLE SERVICE. . . . . . . . . . .

23A-364

A/T CONTROL COMPONENT LAYOUT . .

23A-364

ESSENTIAL SERVICE . . . . . . . . . . . . . . . .

23A-366

TRANSMISSION FLUID CHECK . . . . . . . .

23A-366

TRANSMISSION FLUID CHANGE. . . . . . .

23A-367

FLUSHING COOLERS AND TUBES . . . . .

23A-369

OIL COOLER FLOW CHECK . . . . . . . . . . .

23A-371

TRANSMISSION RANGE SWITCH
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23A-372

TRANSMISSION RANGE SWITCH AND
CONTROL CABLE ADJUSTMENT. . . . . . .

23A-372

AUTOMATIC TRANSAXLE CONTROL
COMPONENT CHECK. . . . . . . . . . . . . . . .

23A-374

CRANKSHAFT POSITION SENSOR
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23A-374

TRANSMISSION FLUID TEMPERATURE
SENSOR CHECK . . . . . . . . . . . . . . . . . . . .

23A-374

TRANSMISSION RANGE SWITCH
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23A-375

STOPLIGHT SWITCH CHECK. . . . . . . . . .

23A-375

A/T CONTROL RELAY CHECK . . . . . . . . .

23A-375

SOLENOID VALVE CHECK . . . . . . . . . . . .

23A-376

SELECTOR LEVER OPERATION
CHECK . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23A-377

KEY INTERLOCK AND SHIFT LOCK
MECHANISM CHECK. . . . . . . . . . . . . . . . .

23A-378

TRANSAXLE CONTROL CABLE
ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . .

23A-379

TRANSAXLE CONTROL* . . . . . . . . .

23A-380

REMOVAL AND INSTALLATION . . . . . . . .

23A-380

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

23A-381

DISASSEMBLY AND ASSEMBLY . . . . . . .

23A-382

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

23A-384

A/T KEY INTERLOCK AND SHIFT
LOCK MECHANISMS* . . . . . . . . . . . .

23A-385

REMOVAL AND INSTALLATION . . . . . . . .

23A-385

INSPECTION. . . . . . . . . . . . . . . . . . . . . . . .

23A-386

TRANSAXLE ASSEMBLY . . . . . . . . .

23A-387

REMOVAL AND INSTALLATION
<F4A4B> . . . . . . . . . . . . . . . . . . . . . . . . . . .

23A-387

REMOVAL AND INSTALLATION
<F4A5A> . . . . . . . . . . . . . . . . . . . . . . . . . . .

23A-395

TRANSMISSION FLUID COOLER,
HOSE AND PIPE . . . . . . . . . . . . . . . .

23A-403

REMOVAL AND INSTALLATION
<F4A4B> . . . . . . . . . . . . . . . . . . . . . . . . . . .

23A-403

REMOVAL AND INSTALLATION
<F4A5A> . . . . . . . . . . . . . . . . . . . . . . . . . . .

23A-404

SPECIFICATIONS . . . . . . . . . . . . . . .

23A-405

FASTENER TIGHTENING
SPECIFICATIONS. . . . . . . . . . . . . . . . . . . .

23A-405

SERVICE SPECIFICATIONS . . . . . . . . . . .

23A-406

LUBRICANT . . . . . . . . . . . . . . . . . . . . . . . .

23A-406

GENERAL DESCRIPTION

TSB Revision

AUTOMATIC TRANSAXLE

23A-3

GENERAL DESCRIPTION

M1231000100366

F4A4B and F4A5A models have been established.

ITEM

SPECIFICATION

Transaxle model

F4A4B-4-L1Z

F4A5A-4-F1Z

Engine model

4G69-MPI-MIVEC

6G75-MPI

Torque converter

Type

3-element, 1-stage, 2-phase type

Lock-up

Provided

Stall torque ratio

2.0

1.7

Transaxle type

4 forward speeds, 1 reverse speed, fully automatic

Transaxle gear ratio

1st

2.842

2.842

2nd

1.573

1.576

3rd

1.000

1.000

4th

0.688

0.686

Reverse

2.214

2.193

Final reduction ratio (Differential gear ratio) 4.212

3.728

Clutch

Multi-disc type 3 sets

Brake

Multi-disc type 2 sets

Manual control system

P-R-N-D-3-2-L (7 positions)

P-R-N-D (4 position) + Sport
mode (up, down)

Shift pattern control

Electronic control

Hydraulic control during shifting

Electronic control (Each clutch hydraulically independently
controlled)

Torque converter clutch control

Electronic control

Transmission fluid

Specified lubricants

DIAMOND ATF SP III

Quantity dm

3

(qt)

7.7 (8.1)

8.4 (8.9)

GENERAL DESCRIPTION

TSB Revision

AUTOMATIC TRANSAXLE

23A-4

TRANSAXLE

The transaxle is made up of the torque converter and gear train. A 3-element, 1-stage, 2-phase torque con-

verter with built-in torque converter clutch is used. The gear train is made up of four sets of multi-disc

clutches, two sets of multi-plate brakes, one set of one-way clutches and two sets of planetary gears. The

planetary gears are made up of sun gears, carriers, pinion gears and annulus gears.

.

TRANSAXLE CONFIGURATION DRAWING

.

COMPONENTS AND FUNCTIONS

FUNCTION ELEMENT TABLE

×: Function element −: Not applicable
NOTE: * operates only when the vehicle is stationary [at approximately 10 km/h (6.2 mph) or less].

AC001813

OD

REV

2ND LR

OWC

UD

AB

COMPONENT

FUNCTION

Underdrive clutch

UD

connects the input shaft to the underdrive sun gear.

Reverse clutch

REV

connects the input shaft to the reverse sun gear.

Overdrive clutch

OD

connects the input shaft to the overdrive planetary carrier.

Low-reverse brake

LR

holds the low-reverse annulus gear and the overdrive planetary

carrier.

Second brake

2ND

holds the reverse sun gear.

One-way clutch

OWC

restricts the rotation direction of the low-reverse annulus gear.

OPERATING ELEMENT

ENGINE

START

PARKING

MECHANISM

UNDER

DRIVE

CLUTCH

(UD)

REVERSE

CLUTCH

(REV)

OVER-

DRIVE

CLUTCH

(OD)

LOW-

REVERSE

BRAKE (LR)

SECOND

BRAKE

(2ND)

TRANSMISSION RANGE

P

Parking

OK

×

−

−

−

×

−

R

Reverse

−

−

−

×

−

×

−

N

Neutral

OK

−

−

−

−

×

−

Sport
mode

1st

−

−

×

−

−

×*

−

2nd

−

−

×

−

−

−

×

3rd

−

−

×

−

×

−

−

4th

−

−

−

−

×

−

×

GENERAL DESCRIPTION

TSB Revision

AUTOMATIC TRANSAXLE

23A-5

SECTIONAL VIEW <F4A4B>

AC305544AC

1

4

3

2

5

6 7

8

9

19

11

12

13

14

15

16

17

18

10

1. OVERDRIVE

CLUTCH

2. REVERSE

CLUTCH

3. OVERDRIVE

PLANETARY

CARRIER

4. SECOND

BRAKE

5. LOW-REVERSE

BRAKE

6. OUTPUT

PLANETARY

CARRIER

7. ONE-WAY

CLUTCH

8. TRANSFER

DRIVE

GEAR

9. UNDERDRIVE

CLUTCH

10. TRANSAXLE CASE

11. TORQUE CONVERTER
12. TORQUE CONVERTER CLUTCH
13. INPUT SHAFT
14. OIL PUMP
15. TORQUE CONVERTER HOUSING
16. DIFFERENTIAL
17. TRANSFER DRIVEN GEAR
18. OUTPUT SHAFT
19. REAR COVER