Why Is An Automatic Transmission System So Hard To Service?

As someone who owns an automatic car, you may have wondered why automatic transmission systems are difficult to service compared to manual ones. The answer lies in the complex design structure of automatic transmission systems. So, what do you need to know about why they require specialized expertise when it comes to service and repair? 

The Complexity of Automatic Transmission System Design

Automatic transmission systems are complex as they convert torque from the engine to the wheels using a combination of gears, hydraulic pressure, and electronic sensors. Unlike manual transmission systems, automatic ones have more moving parts, which makes it hard to access specific components for repair and maintenance. Moreover, the intricate design of the automatic transmission system makes it difficult to diagnose problems without specialized tools and expertise.

Electronics and Control Units

Modern automatic transmission systems use electronics and control units to regulate the flow of hydraulic pressure to shift gears. These control units monitor the speed of the car, engine load, throttle position, and other variables to determine the very best gear ratio for the best performance. Since these systems are electronic, they require specialized diagnostics tools to detect faults and identify the root cause of the issue.

Fluids and Filters

Automatic transmission systems require specialized fluids to lubricate the gears and hydraulic systems and filters to remove contaminants and debris. Since these fluids need to be replaced regularly, the automatic transmission system's design makes it hard to access filters and drain plugs for fluid replacement. Servicing fluid, filters, and gaskets requires specialized expertise and tools.

Precision Manufacturing

Automatic transmission systems require precision manufacturing since the components inside operate at high speeds and pressures. The materials used are high-quality alloys, and multiple components are designed to fit together tightly to prevent any leaks. To maintain the high standards of construction, specific tools and expertise are required when disassembling and replacing components.

Modernization and Innovation

With the advancement in technology, newer automatic transmission system designs include more electronic components that control the valve body and clutch packs. These systems demand sophisticated software to diagnose issues and require re-programming and updates. As such, it becomes increasingly challenging for even trained mechanics to handle the servicing aspect.

What You Need to Remember

In conclusion, the design of an automatic transmission system is a combination of precision engineering and complex electronics. Maintaining and servicing these systems require specialized knowledge, tools, and expertise, as even small mistakes can lead to severe issues.

Contact a local auto service to learn more about transmissions.