Who is correct regarding the use of SAI/KPI angles for diagnosing issues?

SAI (Steering Axis Inclination) and KPI (Kingpin Inclination) are critical angles that play a significant role in the overall geometry of a vehicle’s suspension system. When diagnosing issues related to steering and handling, understanding these angles helps assess how they affect tire wear, steering response, and the vehicle's stability.

Technician A is likely correct in their assertion that SAI and KPI angles can be used to identify problems such as tire wear patterns or steering issues stemming from alignment faults. By measuring these angles, a technician can determine whether suspension components are functioning correctly, and if they are within manufacturer specifications, this can help in diagnosing whether the issue may be related to other components, such as worn bushings or ties rods.

In contrast, the other technician may not fully recognize the importance of these angles in their diagnosis or may suggest focusing solely on other aspects, which could overlook significant evidence provided by SAI and KPI measurements. Thus, confirming the alignment of SAI and KPI angles can lead to a more informed approach to troubleshooting and resolving steering-related concerns.