2013 NATEF Task Area A-2 Automatic Transmission

7-2013

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A. General Transmission & Transaxle Diagnosis

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B. Transmission & Transaxle Maintenance & Adjustment

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C. In-Vehicle Transmission & Transaxle Repair

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D. Off-Vehicle Transmission & Transaxle Repair Typical Rubric for NATEF Competencies 1 = Demonstrated Exposure and has observed the competency 2 = Applies the competency but only mastered a few essential attributes 3 = Capable of the competency but needs further practice 4 = Performs the competency satisfactorily [Proficient] 5 = Mastered the competency [Exemplary]

A2.A.1 P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Identify and interpret transmission/transaxle concern, differentiate between engine performance and transmission/transaxle concerns; determine necessary action.

A2.A.2 P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Research applicable vehicle and service information fluid type, vehicle service history, service precautions, and technical service bulletins.

A2.A.3 P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Diagnose fluid loss and condition concerns; determine necessary action.

A2.A.4 P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Check fluid level in a transmission or a transaxle equipped with a dip-stick.

A2.A.5 P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Check fluid level in a transmission or a transaxle not equipped with a dip-stick.

A2.A.6 P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Perform pressure tests (including transmissions/transaxles equipped with electronic pressure control); determine necessary action.

A2.A.7 P-2 NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Diagnose noise and vibration concerns; determine necessary action.

A2.A.8 P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Perform stall test; determine necessary action.

A2.A.9 P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Perform lock-up converter system tests; determine necessary action.

A2.A.10

P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Diagnose transmission/transaxle gear reduction/multiplication concerns using driving, driven, and held member (power flow) principles.

A2.A.11

P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Diagnose electronic transmission/transaxle control systems using appropriate test equipment and service information.

A2.A.12

P-2 NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Diagnose pressure concerns in a transmission using hydraulic principles (Pascal’s Law).

A2.B.1 P-2 NATEF Task Area A-2 Automatic Transmission & Transaxle B. In-Vehicle Transmission & Transaxle Repair Inspect, adjust, and replace external manual valve shift linkage, transmission range sensor/switch, and park/neutral position switch.

A2.B.2 P-2 NATEF Task Area A-2 Automatic Transmission & Transaxle B. In-Vehicle Transmission & Transaxle Repair Inspect for leakage; replace external seals, gaskets, and bushings.

A2.B.3 P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle B. In-Vehicle Transmission & Transaxle Repair Inspect, test, adjust, repair, or replace electrical/electronic components and circuits including computers, solenoids, sensors, relays, terminals, connectors, switches, and harnesses.

A2.B.4 P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle B. In-Vehicle Transmission & Transaxle Repair Drain and replace fluid and filter(s).

A2.B.5 P-2 NATEF Task Area A-2 Automatic Transmission & Transaxle B. In-Vehicle Transmission & Transaxle Repair Inspect powertrain mounts.

A2.C.1

P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Remove and reinstall transmission/transaxle and torque converter; inspect engine core plugs, rear crankshaft seal, dowel pins, dowel pin holes, and mating surfaces.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Remove and reinstall transaxle and torque converter assembly.

A2.C.2

P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect, leak test, and flush or replace transmission/transaxle oil cooler, lines, and fittings.

A2.C.3 P-2 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect converter flex (drive) plate, converter attaching bolts, converter pilot, converter pump drive surfaces, converter end play, and crankshaft pilot bore.

A2.C.4 P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Describe the operational characteristics of a continuously variable transmission (CVT).

A2.C.5 P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Describe the operational characteristics of a hybrid vehicle drive train.

A2.C.6 P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Disassemble, clean, and inspect transmission & transaxle.

A2.C.7 P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect, measure, clean, and replace valve body (includes surfaces and bores, springs, valves, sleeves, retainers, brackets, check-balls, screens, spacers, and gaskets), and torque valve body bolts.

A2.C.8 P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect servo bore, piston, seals, pin, spring, and retainers; determine necessary action.

A2.C.9 P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Assemble transmission/transaxle.

A2.C.9 P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Assemble transmission/transaxle.

A2.C.10

P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect, measure, and reseal oil pump (F & R) assembly and components.

A2.C.11

P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Measure endplay or preload; determine necessary action.

A2.C.12

P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect, measure, and replace thrust washers and bearings.

A2.C.13

P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect oil delivery circuits, including seal rings, ring grooves, and sealing surface areas, feed pipes, orifices, and check valves/balls.

A2.C.14

P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect bushings; determine necessary action.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle B. In-Vehicle Transmission & Transaxle Repair Inspect extension housing, bushings and seals; perform necessary action.

A2.C.15

P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect and measure planetary gear assembly (includes sun, ring gear, thrust washers, planetary gears. and carrier assembly); determine necessary action.

A2.C.16

P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect case bores, passages, bushings, vents, and mating surfaces; determine necessary action.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle D. Off-Vehicle Transmission & Transaxle Repair Inspect, measure, and replace thrust washers and bearings.

A2.C.17

P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Diagnose and inspect transaxle drive, link chains, sprockets, gears, bearings, and bushings; perform necessary action.

A2.C.18

P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect, measure, repair, adjust or replace transaxle final drive components.

A2.C.19

P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect clutch drum, piston, check-balls, springs, retainers, seals, friction and pressure plates; determine necessary action.

A2.C.20

P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Measure clutch pack clearance; determine necessary action.

A2.C.21

P-1 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Air test operation of clutch and servo assemblies.

A2.C.22

P-3 NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect roller and sprag clutch, races, rollers, sprags, springs, cages, and retainers; determine necessary action.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Diagnose transmission/transaxle gear reduction/multiplication concerns using driving, driven, and held member (power flow) principles.

Carrier drives = overdrive Carrier driven = reduction Carrier held = reverse Two members held = direct drive Nothing driven or held = neutral Parking Pawl engaged to the output shaft = park

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Diagnose electrical/electronic concerns using principles of electricity (Ohms' Law).

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect and reinstall parking pawl, shaft, spring, and retainer; determine necessary action.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect bands and drums; determine necessary action.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Inspect accumulator bore, piston, seals, spring, and retainer; determine necessary action.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Diagnose mechanical and vacuum control system concerns; determine action.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle B. In-Vehicle Transmission & Transaxle Repair Inspect, adjust or replace (as applicable) vacuum modulator; inspect and repair or replace lines and hoses.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle B. In-Vehicle Transmission & Transaxle Repair Inspect, repair, and replace governor assembly.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle B. In-Vehicle Transmission & Transaxle Repair Inspect and replace external seals and gaskets.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle B. In-Vehicle Transmission & Transaxle Repair Inspect and replace speedometer drive gear, driven gear, vehicle speed sensor (VSS), and retainers.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle C. Off-Vehicle Transmission & Transaxle Repair Measure torque converter endplay and check for interference; check stator one way clutch.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Complete work order to include customer information, vehicle identifying information, verify customer concern, related service history, cause, & correction.

“Oldie” NATEF Task Area A-2 Automatic Transmission & Transaxle A. General Transmission & Transaxle Diagnosis Locate and interpret vehicle and major component identification numbers (VIN, vehicle certification labels, calibration decals).