Prepare for the Automotive Service Technician Period 1 exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which condition leads to scuffing wear from inside to outside?

Tire wear patterns are driven by how the wheels are aligned in toe. When toe-out is excessive, the tires are aimed outward relative to the vehicle center. As the tire rolls, it tends to scrub sideways to align with the direction of travel, and this scrubbing can show up as wear that starts on the inner portion of the tread and gradually moves toward the outer portion. In other words, the scuffing begins inside and progresses outward, which matches the described pattern. Camber errors tilt wear toward a particular edge, but they don’t produce the inside-to-outside progression caused by excessive toe-out.

Tire wear patterns are driven by how the wheels are aligned in toe. When toe-out is excessive, the tires are aimed outward relative to the vehicle center. As the tire rolls, it tends to scrub sideways to align with the direction of travel, and this scrubbing can show up as wear that starts on the inner portion of the tread and gradually moves toward the outer portion. In other words, the scuffing begins inside and progresses outward, which matches the described pattern. Camber errors tilt wear toward a particular edge, but they don’t produce the inside-to-outside progression caused by excessive toe-out.