Rydell Cars

Transmission

Transmission

Transmission example picture

Learn About your Vehicle's Transmission

Your transmission is one of the most important parts of your vehicle. It’s what circulates the power from the engine into the wheels. Transmissions can disconnect the engine from the drive wheels so that the engine can stay idling without the wheels moving. A transmission also makes it easy for quick acceleration from a complete stop and controls the engine speed to help reduce wear on the vehicle when it is in motion.

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Looking for specific information on servicing your vehicle? Each category below has extensive information that may help your search for information.

Different Types of Transmissions

To better understand how the transmission works, you first must understand there are many different types of transmissions and they each function differently.

Manual

Manual transmissions have a clutch pedal and a shifter which is used to manually change the gears. Manual transmissions use a flywheel, pressure plate, and clutch to engage the engine and the transmission.

Dual Clutch transmission diagram

Dual Clutch

This transmission uses two different clutches, one clutch operates the even gears (2, 4, and 6), while the other clutch operates the odd gears (1, 3, 5, and reverse). Today’s dual-clutch automated manual transmissions may sometimes also be called a “double-clutch transmission” or “twin-clutch” transmission, as a computer controls the shifting and maintains the clutch, thus filling in the gap between manual and automatic transmissions.

Synchronized/constant mesh transmission diagram

Synchronized/Constant Mesh

This transmission is responsible for keeping the cluster gear, drive gear, and main shaft gears moving at a constant pace. Pads are used in these transmissions to help slow down the gears, which removes the need for a dual-clutch.

Single-Clutch transmission diagram

Single-Clutch

a single clutch also uses a computer to control the shifting and clutch, but the control can be used as electric, hydraulic, or electrohydraulic.

Automatic

Automatic transmissions are easy-to-use transmissions that don’t require any manual shifting of the vehicle. The transmission can estimate when the vehicle needs to either upshift or downshift based on speed and either incline or decline.

Torque Converter transmission diagram

Torque Converter

A torque converter is one of the oldest automatic transmissions. This transmission uses two turbines in which one is connected to the engine and the other is connected to the transmission. The torque converter multiplies torque at a low RPM to have enough power from the engine to accelerate.

Automated manual transmission (AMT) diagram

Automated Manual Transmission (AMT)

This transmission uses a computer and an actuator to determine which gear the vehicle needs to be shifted to at which speed. With an AMT, you put your vehicle into drive, and it will shift for itself.

Continuously variable transmission (CVT) example photo

Continuously Variable Transmission (CVT)

This is a newer transmission where the gears will change frequently depending on the speed of the vehicle. This is achieved with two pulleys that are connected by a belt that will constantly change its diameter based on the vehicle’s speed, weight, incline, and decline.

Dual clutch / direct shift gearbox transmission diagram

Dual Clutch / Direct Shift Gearbox

This transmission uses two different clutches to automatically change the gears. One clutch controls gears 1, 3, and 5, and the other clutch controls gears 2, 4, and 6. Power loss is prevented from these clutches because the gears are ready to be engaged as soon as it hits gear one.

Main Components of an Automatic Transmission

There are about over 800 parts that make up an automatic transmission. Listed below will be the basic main components of an automatic transmission.

Planetary gear sets transmission diagram

Planetary Gear Sets

Mechanical systems that allow the vehicle to move forward and in reverse.

Hydraulic system transmission diagram

Hydraulic System

Sends transmission fluid through a series of tubes and pumps to all parts of the transmission and torque converter which maintains the planetary gear sets.

Seals and gaskets transmission diagram

Seals and Gaskets

Controls the flow of hydraulic fluid and prevents it from leaking.

Torque converter transmission diagram

Torque Converter

Allows the vehicle to run and stay in gear while the vehicle is not in motion.

Governor and the modulator transmission diagram

Governor and the Modulator

Monitors the speed of the vehicles and senses when to shift.

Computer controls component of the transmission diagram

Computer Controls

Uses sensors on the engine and transmission to detect vehicle speed, engine speed, throttle position, and engine load to control the exact shift points.

What's the Difference Between Transmission Types?

Signs That Your Transmission Needs to be Replaced

Common Causes for a Transmission to Stop Working

Common cause for transmission to stop working: leaking or low fluid

Leaking or Low Transmission Fluids

The transmission fluid is what oils all the moving parts within the transmission, so they can move smoothly. With low transmission fluid, it can cause your gears to not switch correctly and cause grinding noises which is never a good sign for your vehicle.

Common cause for transmission to stop working: worn gears

Worn Gears

You may feel worn gears in your vehicle when you feel a jerk or clunk when your transmission is trying to shift into another gear. This indicates that there is something internally wrong with your transmission and it needs to be looked at right away.

Common cause for transmission to stop working: fliter is clogged

Transmission Filter is Clogged

When the transmission filter is clogged, the flow of the transmission fluid is restricted, which affects all the overheating parts that the fluid can’t get access to. A clogged or dirty transmission filter causes major internal issues with the transmission.

Transmission still not working right icon

What to Do When Your Transmission Isn't Working Right

If your vehicle starts to have a burning smell, trouble shifting gears, making odd noises, or your check engine light comes on, it’s likely something with your transmission is wrong and your vehicle needs to be brought in. Our certified technicians at Rydell in Grand Forks, ND would be glad to help by taking a look at your car or truck to find out what the problem is and figuring out an approach to fix your vehicle. It is Rydell’s priority to keep our customers safe and happy!

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