Torque Converter: Everything You Need To Know

A hydraulic torque converter, also called a torque converter, is an integral part of your vehicle's transmission. Whether equipped with a manual or automatic model, it will be equipped with a torque converter coupled to the gearbox as well as the clutch. In this article, we present everything you need to know about a torque converter: how it works, its signs of wear, how to check it, and what is the cost of replacing it.

🚘 How does a torque converter work?

A torque converter is used to connect the engine shaft to Transmission your car. His role isolate Transmission refers to engine и increase torque at different speeds when entering and exiting. And he allows the engine to run continuously regardless of the transmission.

It is often called hydraulic because all of these elements are located next to carter oil and take a dip intransmission oil... Thus, the torque converter has the form robust round body which consists of three separate parts:

1. Pump : centrifugal type, it will rotate to push the transmission oil outward and allow more fluid to enter its center;
2. Turbine : Liquid will seep through the turbine blades. The latter, being connected to the transmission, will be able to make it turn and allow the vehicle to move;
3. Reactor : located in the middle of the converter, it allows the fluid to be diverted from the turbine to the pump to ensure optimum efficiency of the torque converter.

🔎 What are the symptoms of a faulty torque converter?

Over time, the torque converter can wear out and fail. Thus, it will have a big impact on the performance of your vehicle. Symptoms of a failed torque converter can manifest themselves in the following ways:

• Screaming sounds occur : they will be especially large and squeaky when you are driving.
• Vibrations present : they will be felt when driving at a speed of 50 to 70 km / h. They can suddenly disappear if you accelerate;
• Repetitive spikes in motor voltage occur : they will significantly affect the quality of your driving and may get louder and louder;
• Increased consumption fuel : The engine will need more rpm for normal operation. This will reduce the pressure of the transmission fluid and create an increase in fuel consumption;
• There will be problems with the speed of the car : If the pressure in the torque converter is not constant, the transmission will suddenly decrease or increase speed even if you press the accelerator pedal or brake.

Torque converter malfunctions can be dangerous for your safety and other road users.

👨‍🔧 How to check the torque converter?

There are several basic steps to follow to check the torque converter. First, you will need to check all the fluids in your car. If some of them have lost their viscosity, it will be necessary to carry out converter drain.

If the fluids are in perfect condition, you will need to bring a diagnostic case and start the following procedure to check the torque converter:

1. Lock the wheels and turn on hand brake ;
2. click brake pedal to the maximum;
3. Start the engine;
4. Engage gas pedal maximum 3 seconds;
5. Read the fault code on diagnostic case.

If the torque converter is no longer in working order, it will have to be completely replaced. Really, repair of the torque converter quite rare.

💸 How much does it cost to replace a torque converter?

The cost of replacing a torque converter on an automatic or manual transmission is an operation that can be costly. Indeed, changing this part requires between 4 and 6 hours of work by a professional in a car repair shop.

On average, a new part costs from 200 € and 300 € depending on the brand and model chosen. Then you will need to add between 100 € and 500 € labor by the hourly cost of labor.

In total, this intervention will cost you from 300 € and 900 € depending on the institution chosen and your car model.

The torque converter is an essential transmission device for your vehicle. If it is defective, compare offers from many workshops using our online garage comparator. This way, you will find a professional with the best value for money on the market next to you!