ASE Test Prep Manual A2, Automotive Automatic Transmission/Transaxle
by Delmar, Most recent edition
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The Delmar Self-Study Guide for the A2 Automatic Transmission/Transaxle ASE Test contains:
- Tips on preparing for and taking the ASE test.
- The A2 ASE Test Task List, which lists the knowledge that a technician must have to pass the A2 ASE test.
- Detailed Automatic Transmission/Transaxle diagnostic information, including transmission symptom descriptions and their causes, complete hydraulic and electronic testing procedures, with the interpretation of test results, detailed in-vehicle and off-vehicle transmission disassembly, cleaning, inspection, repair, adjustment and assembly procedures.
- A Practice Test, with all questions written in the ASE style. The answers to the Practice Test questions contain thorough explanations for each answer.
- A comprehensive Glossary, including all automatic transmission/transaxle related terms used in the Study Guide.
In addition to the easy-to-read text, the Delmar A2 Automatic Transmission/Transaxle Self-Study Guide contains dozens of useful illustrations, and like all Delmar Self-Study Guides. You ll also find the Delmar A2 Automatic Transmission/Transaxle Self-Study Guide to be a handy reference manual that you can use on the job after you've taken the ASE test.
ASE A2 Auto Test Prep Study Guide - Automatic Transmissions & Transaxles
General Transmission/Transaxle Diagnosis (25 questions)
- Mechanical/Hydraulic Systems (11 questions)
a. Road test the vehicle to verify mechanical/hydraulic system problems based on driver’s concern; determine necessary action.
b. Diagnose noise, vibration, harshness, and shift quality problems; determine necessary action.
c. Diagnose fluid loss, type, level, and condition problems; determine necessary action.
d. Perform pressure tests; determine necessary action.
e. Perform stall tests; determine necessary action.
f. Perform torque converter clutch (lock-up converter) mechanical/hydraulic system tests; determine necessary action.
- Electronic Systems (14 questions)
a. Road test the vehicle to verify electronic system problems based on driver’s concern; determine necessary action.
b. Perform pressure tests on transmissions equipped with electronic pressure control; determine necessary action.
c. Perform torque converter clutch (lock up converter) electronic system tests; determine necessary action.
d. Diagnose electronic transmission control systems using appropriate test equipment, service information, technical service bulletins, and schematics; diagnose shorts, grounds, opens, and resistance problems in electrical/electronic circuits; determine necessary action.
e. Verify proper operation of charging system; check battery, connections, and power/ground circuits.
f. Differentiate between engine performance, or other vehicle systems, and transmission/transaxle related problems; determine necessary action.
g. Diagnose shift quality concerns resulting from problems in the electronic transmission control system; determine necessary action.
In-Vehicle Transmission/Transaxle Maintenance and Repair (12 questions)
a. Inspect, adjust, and replace manual valve shift linkage, transmission range sensor/switch, and park/neutral position switch (inhibitor/neutral safety switch).
b. Inspect, adjust, and replace cables or linkages for the throttle valve (TV) and accelerator pedal.
c. Inspect and replace external seals and gaskets.
d. Inspect and replace driveshaft yoke, drive axle joints, and bushings, and seals.
e. Check condition and operation of engine cooling system; inspect transmission cooler, lines and fittings.
f. Inspect valve body mating surfaces, bores, valves, springs, sleeves, retainers, brackets, check balls, screens, spacer plates, and gaskets; replace as necessary.
g. Torque valve body fasteners to specification.
h. Inspect accumulator and servo bores, pistons, seals, pins/pin bores, springs, and retainers; repair or replace as necessary.
i. Inspect, test, adjust, repair, or replace electrical/electronic components and circuits including control modules, solenoids, sensors, relays, terminals, connectors, switches, and harnesses.
j. Inspect, replace, and/or align power train mounts.
k. Replace fluid and filter(s); verify proper fluid level and type (for transmissions with, or without, a dipstick).
Off-Vehicle Transmission/Transaxle Repair (13 questions)
- Removal and Installation (4 questions)
a. Remove and install transmission/transaxle; inspect engine core plugs, rear crankshaft seal, transmission dowel pins, dowel pin holes, and mating surfaces.
b. Inspect converter flex (drive) plate, converter attaching bolts, converter pilot, crankshaft pilot bore, converter pump drive surfaces.
c. Install torque converter and establish correct converter-to-pump engagement; inspect converter free movement for pilot engagement during transmission installation.
d. Inspect, test, flush or replace transmission fluid cooler.
e. Inspect brackets, wiring harnesses, fuel lines, heat shields, inspection covers, and related components for proper routing and installation.
f. Perform module coding and/or programming (including adaptive learning reset); road test to confirm proper operation.
- Disassembly and Assembly (5 questions)
a. Disassemble, clean, and inspect transmission case, sub-assemblies, mating surfaces, and thread condition.
b. Inspect and measure fluid pump components; replace as necessary.
c. Check bearing preload; determine needed service.
d. Check end play; inspect, measure, and replace thrust washers and bearings as needed.
e. Inspect shafts; replace as necessary.
f. Inspect fluid delivery circuit, including seal rings, ring grooves, sealing surface areas, feed pipes, orifices, and encapsulated check valves (balls).
g. Inspect bushings; replace as necessary.
h. Inspect and measure components of the planetary gear assembly; replace as necessary.
i. Inspect case bores, passages, bushings, vents, mating surfaces, and dowel pins; repair or replace as necessary.
j. Inspect valve body mating surfaces, bores, valves, solenoids, springs, sleeves, retainers, brackets, check balls, screens, spacer plates, and gaskets; replace as necessary.
j. Inspect transaxle drive chains, sprockets, gears, bearings, and bushings; replace as necessary.
k. Inspect and measure transaxle final drive components; repair, replace and/or adjust as necessary.
l. Assemble after repair.
- Friction and Reaction Units (4 questions)
a. Inspect components of the hydraulic clutch pack assembly; replace as necessary
. b. Measure clutch pack clearance; adjust as necessary.
c. Air test the operation of clutch and servo assemblies.
d. Inspect components of one way clutch assemblies; replace as necessary.
e. Inspect bands and drums (housings/cylinders); replace and/or adjust as necessary
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