Which of the following will NOT cause bump steer?

Bump steer refers to the unintended steering response that happens when a vehicle's suspension moves up and down, causing changes in the angle of the wheels. This phenomenon typically arises when the geometry of the steering and suspension systems is altered due to wear or misalignment.

The correct choice, which states that incorrect camber settings will not cause bump steer, is accurate because camber adjustments primarily affect tire wear and the handling characteristics of the vehicle during cornering rather than vertical motion. While incorrect camber settings can lead to unusual tire wear and may influence the amount of grip the tires have during turns, they do not directly impact how the vehicle reacts to bumps in terms of steering input.

In contrast, worn components like the idler arm, an unlevel steering rack, and a worn center link can alter the alignment of the steering linkage relative to the suspension, which directly contributes to bump steer. When these parts are worn or misaligned, they can cause the wheels to move in a way that changes the angle of the wheels during suspension compression, leading to unintended steering responses during normal driving.

By understanding how each component affects the vehicle's dynamics, one can see why incorrect camber settings do not have a direct influence on bump steer, differentiating it