What can occur if the front axle is under-loaded?

When the front axle is under-loaded, poor traction and unsafe steering can occur due to the reduced weight on that axle. The front axle plays a critical role in steering control, and when it is not adequately loaded, it can lead to a loss of grip on the road surface. This lack of traction can make it difficult for the vehicle to respond effectively to steering inputs, making it harder to control the direction of the vehicle, especially in adverse weather conditions such as rain or snow. Additionally, under-loading can result in instability, posing safety risks not only for the driver but also for others on the road.

In contrast, factors like fuel efficiency, inability to accelerate, and tire wear are influenced by different aspects of vehicle dynamics and load distribution but are not directly tied to the specific issue of the front axle being under-loaded.