What can result from improper lug nut torque?

Improper lug nut torque is crucial to the safe operation of a vehicle. When lug nuts are not tightened to the manufacturer’s specified torque, it can lead to various issues, with warped brake parts being a significant consequence.

When lug nuts are either over-tightened or insufficiently tightened, it can cause uneven pressure on the brake components. Specifically, warped brake rotors occur because the brake pads are not making uniform contact with the rotor surface, leading to high-temperature spots. These high-temperature spots can cause the metal of the rotors to distort, resulting in a pulsating brake feel and decreased braking effectiveness. Warping can lead to premature wear of the brake pads, increased stopping distances, and ultimately may necessitate costly repairs or replacements of the brake components.

In contrast, the other options don't directly relate to the outcomes of improper lug nut torque. For instance, increased fuel efficiency and enhanced steering response are not typically affected by the torque of lug nuts. Similarly, while decreased engine performance may arise from various engine issues, it does not have a direct link to the torque of lug nuts. Understanding the importance of proper torque can help ensure vehicle safety and performance.