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What Does A New Transmission Do For A Car?

Published by Handy Work on

In this article, we will discuss all you need to know about installing a new transmission in a car. You will learn what a car transmission is, how you know you need a new transmission, and what a new transmission can do for your vehicle.

What is a Transmission?

A car parked indoor with new car transmission.
Photo by Maria Geller on Pexels

A transmission is a device that allows the engine to turn the wheels of a car. Without it, the car would just sit there and not go anywhere.

It turns gears and bands, making the engine go from a low to high speed, from one gear to another. It also regulates the way in which the car’s engine runs, as well as its fuel consumption.

In other words, it is essential for a car to have a transmission in order for it to be able to move at all.

It can be divided into two categories: automatic transmissions and manual transmissions. Their components differ, but generally it can comprise of four parts:

1. The torque converter

This is an aluminum casting that sits between the engine’s drive shaft and crankshaft which helps convert engine power into motion, and keeps your engine speed consistent. It also lets your engine stay on while you disconnect from the transmission.

2. The planetary gear set

This is a group of gears that rotate around each other in order to move the engine. It consists of at least three different gears, but there can be more depending on how many gears are used in the transmission.

The first is the central gear, or also known as the sun gear. The second part is a set of smaller gears, known as the planetary gears, which operate around the sun gear. Finally, the two different kinds are held together with what is known as the ring gears.

The reason it is called a planetary gear system, then, is because all three parts (sun gear, planetary gear, and ring gear) form a unit similar to a planetary system.

3. The hydraulic system

The hydraulic system helps lubricate the parts of your car for optimal performance, control gears when they shift, and keep the temperature of your car cool.

It also uses the hydraulic fluid within your transmission to add pressure. The fluid pressure will then help keep your car running smoothly.

4. The shaft

This is the shaft that the engine turns. It comprises of an output shaft and an input shaft, and it usually has a pulley on it. 

5. The valve body

The valve body essentially is the component that tells your engine fluid where to go, so that your car gets the desired results.

How Can You Know if You Need a New Transmission?

A car speeding in a sandy road.
Photo by Trace Constant on Pexels

You should not just look for a replacement because it is old or worn out. You should only replace your transmission if it is damaged beyond repair or has been in an accident that caused major damage to the transmission and motor of your car.

A good rule of thumb is to replace a worn out or damaged transmission when it has been in an accident for at least four years.

Your car may exhibit the following symptoms:

1. It has a weird smell

The engine may have a very strong odor, usually a burning smell. This can mean that your transmission is overheating and needs to be changed.

2. It’s really loud

Your car may make a lot of grinding noise when it shifts gears, or when you accelerate and decelerate. You should especially take care if the noises are louder than usual.

It can mean that your gear has a lot of mechanical wear and tear and needs a new replacement. It can also mean you need to refuel your engine oil.

3. The check engine light is on

Your car will usually also let you know if there’s a need to do a checkup on your engine by turning on the check engine light. This can range anywhere from minor issues to major ones.

4. It’s leaking fluid

If you see a trail of reddish fluid leaking out of your car and dripping onto the ground, that means you should go to the car shop and get your gear checked.

You should also check on your fluid level, because you may have to get it fixed to ensure fuel efficiency.

If you are experiencing any of these symptoms, then you should take your car to a repair shop or your favorite mechanic and have them check out the transmission for possible issues.

It is best to service your car immediately if there are signs of trouble, or else you might have to spend hundreds of dollars on a new transmission for your car.

How Can it Help?

A new transmission can help your car run better. The new transmission will be smoother and quieter than the old one.

Transmission replacement will also reduce your car’s vibration and improve fuel economy. Your car may feel like it is running smoother, especially if you live in a city with frequent stop-and-go traffic.

By reducing the vibration, it will subsequently reduce power loss and makes for a smoother drive of the car at high speeds.

The smooth running helps with an increase in fuel economy too because less friction is caused by the vibration. This can result in more miles per gallon being driven with less work being done on the engine.

A new transmission will also help you get better gas mileage. As mentioned above, the smoother running of the engine reduces friction. Less friction means less fuel is needed to run the engine.

This means that a new transmission can help your car drive farther on less gas than it did before you installed a new one. This can save you money and make your car more efficient.

In conclusion, you should keep routine maintenance of your transmission and your car as a whole. Work out a regular maintenance schedule with your mechanic to figure out what will work best for you and your vehicle.

By having a consistent maintenance schedule, you can make sure your transmission lasts for a long time and works at optimal condition.

Learn more about how to polish your car, how to fix a dent on your car, and how to get rid of bad odor from your car at HandyWork. Come visit us!


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