II.

AUTOMATIC TRANSMISSION AND TRANSAXLE

 

A.

General Transmission and Transaxle Diagnosis

 

1

 Identify and interpret transmission/transaxle concern; assure proper engine operation; determine necessary action.

 P-1

2

 Research applicable vehicle and service information, such as transmission/transaxle system operation, vehicle service history, service precautions, and technical service bulletins.

 P-1

3

 Locate and interpret vehicle and major component identification numbers (VIN, vehicle certification labels, and calibration decals).

 P-1

4

 Diagnose fluid usage, level, and condition concerns; determine necessary action.

P-1

5

 Perform pressure tests; determine necessary action.

 P-1

6

 Perform stall test; determine necessary action.

 P-2

7

 Perform lock-up converter system tests; determine necessary action.

 P-1

8

 Diagnose electronic, mechanical, hydraulic, vacuum control system concerns; determine necessary action.

 P-1

9

 Diagnose noise and vibration concerns; determine necessary action.

 P-2

10

 Diagnose transmission/transaxle gear reduction/multiplication concerns using driving, driven, and held member (power flow) principles.

 P-1

II.

 AUTOMATIC TRANSMISSION AND TRANSAXLE

 

B.

 Transmission and Transaxle Maintenance and Adjustment

 

1

 Inspect, adjust or replace throttle valve (TV) linkages or cables; manual shift linkages or cables; transmission range sensor; check gear select indicator (as applicable).

P-1

2

 Service transmission; perform visual inspection; replace fluids and filters.

 P-1

II.

 AUTOMATIC TRANSMISSION AND TRANSAXLE

 

C.

 In-Vehicle Transmission and Transaxle Repair

 

1

 Inspect, adjust or replace (as applicable) vacuum modulator; inspect and repair or replace lines and hoses.

 P-3

2

 Inspect, repair, and replace governor assembly.

 P-3

3

 Inspect and replace external seals and gaskets.

 P-2

4

 Inspect extension housing, bushings and seals; perform necessary action.

 P-3

5

 Inspect, leak test, flush, and replace cooler, lines, and fittings.

 P-2

6

 Inspect and replace speedometer drive gear, driven gear, vehicle speed sensor (VSS), and retainers.

 P-2

7

 Diagnose electronic transmission control systems using a scan tool; determine necessary action.

 P-1

8

 Inspect, replace, and align powertrain mounts.

 P-2

II.

 AUTOMATIC TRANSMISSION AND TRANSAXLE

 

D.

 Off-Vehicle Transmission and Transaxle Repair

 

1

 Removal, Disassembly, and Reinstallation

 

1

 Remove and reinstall transmission and torque converter (rear-wheel drive).

 P-2

2

 Remove and reinstall transaxle and torque converter assembly.

 P-1

3

 Disassemble, clean, and inspect transmission/transaxle.

 P-1

4

 Inspect, measure, clean, and replace valve body (includes surfaces and bores, springs, valves, sleeves, retainers, brackets, check-balls, screens, spacers, and gaskets).

 P-2

5

 Inspect servo bore, piston, seals, pin, spring, and retainers; determine necessary action.

 P-3

6

 Inspect accumulator bore, piston, seals, spring, and retainer; determine necessary action.

 P-3

7

 Assemble transmission/transaxle.

 P-1

2

 Oil Pump and Converter

 

1

 Inspect converter flex plate, attaching parts, pilot, pump drive, and seal areas.

 P-2

2

 Measure torque converter endplay and check for interference; check stator clutch.

 P-2

3

 Inspect, measure, and reseal oil pump assembly and components.

P-1

3

 Gear Train, Shafts, Bushings and Case

 

1

 Measure endplay or preload; determine necessary action.

 P-1

2

 Inspect, measure, and replace thrust washers and bearings.

 P-2

3

 Inspect oil delivery seal rings, ring grooves, and sealing surface areas.

 P-2

4

 Inspect bushings; determine necessary action.

 P-2

5

 Inspect and measure planetary gear assembly (includes sun, ring gear, thrust washers, planetary gears, and carrier assembly); determine necessary action.

 P-2

6

 Inspect case bores, passages, bushings, vents, and mating surfaces; determine necessary action.

 P-2

7

 Inspect transaxle drive, link chains, sprockets, gears, bearings, and bushings; perform necessary action.

 P-2

8

 Inspect, measure, repair, adjust or replace transaxle final drive components.

 P-2

9

 Inspect and reinstall parking pawl, shaft, spring, and retainer; determine necessary action.

 P-3

4

 Friction and Reaction Units

 

1

 Inspect clutch drum, piston, check-balls, springs, retainers, seals, and friction and pressure plates; determine necessary action.

 P-2

2

 Measure clutch pack clearance; determine necessary action.

 P-1

3

 Air test operation of clutch and servo assemblies.

 P-1

4

 Inspect roller and sprag clutch, races, rollers, sprags, springs, cages, and retainers; replace as needed.

 P-1

5

 Inspect bands and drums; determine necessary action.

 P-2