The Automatic Transmission

Name: The Automatic Transmission
Rating: 4.6 (545 reviews)

A breakdown and explanation of the automatic transmission.

Highest Rated

Created byScott Greene

Last updated 5/2020

English

English [Auto],

What you'll learn

In this course students will learn the anatomy of the automatic transmission and be able to disassemble a unit.
This course is designed to give the basic components of the transmission and explain how they work together in the unit to make the vehicle move.
This is will not tell you everything about every transmission but, it gives a blueprint to disassembling most units on the market today.

Course content

6 sections • 18 lectures • 3h 33m total length

Introduction4:13
Explore how automatic transmissions work step by step, including four- and three-speed overdrive concepts, and learn practical diagnosis, overhaul, and refurbishment techniques.
Overview of the Course4:04
This overview explains the operation of an automatic transmission and how gears shift from front to back, highlighting the torque converter, clutch packs, pistons, valve body, and bands.

Tools and Component Identification21:40
Identify common transmission repair tools and components, such as snap ring pliers and screwdrivers, and learn how lip seals, bands, servos, clutches, steels, pistons, and accumulators engage gears.
Setting Up For Disassembly4:30
Learn how to mount a transmission on a stand with a bracket, rotate it to expose the bottom side, and prepare for disassembly by loosening the pin.
Section 2 Quiz

Removing The Valve Body, Servo, and Accumulators20:03
Disassemble an automatic transmission by removing the pan, filter, and valve body, and examine servos and accumulators. Follow the repair manual to inspect or clean components for smooth gear shifts.
Tail Housing and Pump Removal6:07
Learn how to remove the tail housing and front pump from a transmission, including disconnecting the wiring harness, removing bolts, and using a slide hammer to extract the pump.
Removing the Subassemblies9:52
Remove and lay out the automatic transmission subassemblies, identify service components like the forward clutch, sun gear, one-way bearing, planetary gears, bands, and overdrive.
The Torque Converter Demonstration10:48
Discover how a torque converter connects the engine to the automatic transmission using the impeller, turbine, and the stator, with hydraulic fluid transferring power and a lock-up clutch reducing slip.
Section 3 Quiz

The Transmission Pump6:43
The transmission pump, the heartbeat of the system, circulates fluid at high pressure to power clutches and gears, driven continuously by the torque converter.
Output Shaft Hub and Ring Gear Assembly23:15
Demonstrates disassembly of the output shaft hub and ring gear, explaining the direct clutch, clutch steels and piston, and how transmission fluid pressure engages or releases the clutch pack.
The Reverse Drum and Input Shaft Assembly13:37
Explore the reverse drum and input shaft assembly inside an automatic transmission, disassemble clutches and the one-way spragg, inspect bearings, seals, and bushings, and learn proper reassembly techniques.
Input Shaft and Forward Clutch Drum10:16
Disassemble the input shaft and forward clutch drum, revealing the clutch pack, wave plate, snap ring, and related gears, then discuss one-way sprag and planetary gear engagement for transmission overhaul.
The Valve Body12:08
Learn how the valve body operates and how to inspect, remove, clean, and reinstall its valves and check balls, using the repair manual flow charts to diagnose shifts.
Section 4 Quiz

Mechanical Shift Application Theory7:19
Explore how a planetary transmission uses sun gears, planets, and bands to produce first through third gears and overdrive, showing input and output speeds and direct drive concepts.
Using A Flowchart To Diagnose Transmission Issues11:53
Diagnose automatic transmission problems with a flow chart, detailing gear selections, forward clutch, and bands, the one-way sprag, and the importance of a repair manual.
Pressure Testing Clutch Drums3:59
Learn to pressure test two clutch drums in an automatic transmission. Use sealing rings, a pump, and air pressure to verify clutch operation before disassembly.
Section 5 Quiz

Electronics Breakdown - Part 123:57
Explore the electronics of the automatic transmission. Learn how a computer uses sensors, five-volt references, and alternating current signals to control gear shifts and speed sensing.
Electronics Breakdown - Part 218:56
Learn how automatic transmissions use two solenoids and pulse width modulation to regulate pressure and shift gears in a four-speed layout, with outputs like the speedometer and check engine light.
Section 6 Quiz

Requirements

Automotive 101 (Suggested but not required)
Automotive 102 (Suggested but not required)

Description

In this course we will be demonstrating and disassembling the automatic transmission. This course is more advanced than the previous courses we have completed so, be sure and watch and re-watch the videos carefully. This course will not show every type of transmission on the market as there are too many to list and it is constantly changing. This course is designed to give a general overview in disassembly and troubleshooting mechanical issues with the automatic transmission.

Who this course is for:

Any one and everyone that is interested in the inner workings of the automatic transmission.
Anyone pursuing a career in automotive repair and/or transmission service.

The Automatic Transmission

What you'll learn

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Course content

Introduction & Overview2 lectures • 8min

Tools and Setup2 lectures • 26min

Removing The Subassemblies and The Torque Converter Demonstration4 lectures • 47min

The Subassemblies5 lectures • 1hr 6min

Shift Theory, Diagnosing Issues and Pressure Testing3 lectures • 23min

Electronics of The Automatic Transmission2 lectures • 43min

Requirements

Description

Who this course is for: