What is a Subaru 4EAT transmission?
The Subaru 4EAT transmission is a four-speed automatic transmission used in various Subaru models. It is known for its durability, reliability, and smooth operation, making it a popular choice among Subaru owners. This article will provide a detailed overview of the Subaru 4EAT transmission, including its features, benefits, and common maintenance considerations.
What is the Subaru 4EAT Transmission?
The Subaru 4EAT (Four-speed Electronically Controlled Automatic Transmission) is an automatic transmission developed by Subaru for use in their all-wheel-drive (AWD) vehicles. It was first introduced in the late 1980s and has been a staple in many Subaru models since then, including the Impreza, Legacy, Outback, and Forester.
The 4EAT transmission is designed to provide smooth and efficient power delivery, while also offering the benefits of Subaru's renowned AWD system. It features four forward gears and one reverse gear, with the ability to automatically shift between them based on driving conditions and the driver's input.
Key Features of the Subaru 4EAT Transmission
- Four-Speed Automatic Transmission: The 4EAT transmission has four forward gears, allowing for efficient power delivery and improved fuel economy compared to older three-speed automatic transmissions.
- Electronic Control: The 4EAT transmission is electronically controlled, which allows for more precise and responsive shifting, as well as the ability to adapt to different driving conditions.
- All-Wheel-Drive Compatibility: The 4EAT transmission is designed to work seamlessly with Subaru's AWD system, providing power to all four wheels for improved traction and stability.
- Durability and Reliability: The 4EAT transmission is known for its robust construction and long-lasting performance, making it a reliable choice for Subaru owners.
The combination of these features makes the Subaru 4EAT transmission a well-suited choice for the brand's lineup of AWD vehicles, providing a balance of performance, efficiency, and reliability.
Benefits of the Subaru 4EAT Transmission
The Subaru 4EAT transmission offers several benefits to Subaru owners, including:
- Smooth and Responsive Shifting: The electronic control of the 4EAT transmission allows for seamless and responsive gear changes, providing a comfortable and enjoyable driving experience.
- Improved Fuel Economy: The four-speed design of the 4EAT transmission, combined with Subaru's efficient AWD system, can help improve fuel economy compared to older three-speed automatic transmissions.
- Enhanced Traction and Stability: The integration of the 4EAT transmission with Subaru's AWD system provides improved traction and stability, especially in challenging driving conditions such as snow, ice, or off-road terrain.
- Durability and Longevity: The robust construction of the 4EAT transmission, along with Subaru's reputation for reliability, makes it a long-lasting and dependable choice for Subaru owners.
These benefits, combined with the transmission's smooth operation and compatibility with Subaru's AWD system, make the 4EAT a popular choice among Subaru enthusiasts and owners.
Maintenance and Common Issues
Like any automotive component, the Subaru 4EAT transmission requires regular maintenance to ensure optimal performance and longevity. Some common maintenance considerations and potential issues include:
- Fluid Changes: Regularly changing the transmission fluid, as recommended by the manufacturer, is crucial for maintaining the 4EAT's performance and preventing premature wear.
- Sensor Issues: Problems with the transmission's electronic sensors, such as the speed sensor or throttle position sensor, can cause shifting issues or other transmission-related problems.
- Wear and Tear: Over time, the internal components of the 4EAT transmission may experience normal wear and tear, which can lead to issues like slipping, delayed shifts, or even complete transmission failure.
- Overheating: Excessive heat buildup in the transmission, often due to towing heavy loads or frequent stop-and-go driving, can accelerate wear and cause premature failure.
By following the manufacturer's recommended maintenance schedule and addressing any issues promptly, Subaru owners can help ensure the long-term reliability and performance of their 4EAT transmission.
What Subaru models do not have a CVT transmission?
Since 2014, the Lineartronic® CVT has been standard in all automatic Subaru models and trims (except the Subaru BRZ).
Are all Subaru's CVT transmissions?
Among their many advantages, Subaru CVT offer exceptional fuel economy and drivetrain efficiency. They also offer smoother linear acceleration versus a traditional automatic setup. Since 2014, the Lineartronic® CVT has been standard in all automatic Subaru models and trims (except the Subaru BRZ).
How do I tell if my Subaru has a CVT transmission?
You may notice a difference if you pay close attention. With a CVT, there are no gears, period, so you hear the engine rev when you press the accelerator but you never feel any power interruption as the gears change.
Is CVT better than automatic?
A CVT is lighter than a traditional automatic, and this, combined with the smoother operation, helps to improve the fuel efficiency of vehicles that come equipped with a CVT. Because of the lack of gearing, it is easier for CVT vehicles to find and maintain an ideal torque ratio as well.
How do I know what Subaru transmission I have?
The model number plate indicates: the applied model, the option code, the trim code, the engine type, the transmission type, and the exterior color code.
What kind of transmission is 4EAT?
he 4EAT Transmission is a 4 speed, microprocessor-controlled transmission that was first introduced in 1987.5 Subaru models. It is not a 3 speed trans- mission with overdrive. It features a lock-up torque converter which locks up in all forward gears except 1st.
What are the 4 types of Subaru transmissions?
List of Subaru transmissions
- 1.1 Three-speed. 1.1.1 3AT. 1.1.2 3AT 1st revision. 1.1.3 3AT.
- 1.2 Four-speed. 1.2.1 ACT-4 or VTD. 1.2.2 4EAT.
- 1.3 Five-speed. 1.3.1 5EAT.
- 1.4 Six-speed. 1.4.1 6EATT. 1.4.2 A960E.
What is the life expectancy of a Subaru CVT transmission?
There is a fair chance your Subaru CVT will last well beyond 60,000 miles as long as you stick to the factory-recommended maintenance schedule and take care not to overfill your transmission fluid.
What years did Subaru have CVT problems?
The models and years that were affected mainly by transmission issues are:
- Crosstrek, 2013 – 2015.
- Crosstrek Hybrid, 2014 – 2015.
- Forester (2.0 and 2.5 liter engines), 2014 – 2015.
- Impreza, 2012 – 2015.
- Legacy, 2010 – 2015.
- Legacy 3.6L V6, 2015.
- Outback, 2010 – 2015.
- Outback 3.6L V6, 2015.
What is the strongest transmission in Subaru?
The 6-speed STI box was designed by Subaru with motorsport in mind. It is by far the best and strongest gearbox Subaru have ever made, and with the highest level of operability. The six-speed gear set is nearly twice the size of the 5-speed and twice as strong.
