In strut-type front suspension, who is correct about replacing front coil springs?

In strut-type front suspension systems, when it comes to replacing front coil springs, it is essential to approach the task with precise knowledge of the components and safety measures involved. The correct answer emphasizes the need for methodical practices when working with coil springs.

Technician B likely states that front coil springs should always be replaced in pairs, which is a crucial aspect of maintaining vehicle handling and balance. Strut assemblies contain springs that are designed to work together. When one spring is worn or damaged, replacing it without addressing its counterpart can lead to uneven suspension performance, affecting ride quality and vehicle safety.

Furthermore, during the replacement process, strut springs are under high tension, and the correct safety measures must be taken to avoid injury, such as using the right tools like spring compressors. This underscores the importance of technician knowledge regarding both the mechanical properties of suspension systems and the best practices for servicing them.

In contrast, if Technician A suggests that it is acceptable to replace only the damaged spring, this perspective lacks consideration for the overall performance and safety of the vehicle. By replacing only one spring, the other, potentially still functional, may not be able to adequately balance the load and dampening required for optimal performance, leading to premature wear or failure.