ASE T5 questions with correct answers

1. The truck with the air suspension system shown above leans to the right. Technician A says that valveX could be the cause. Technician B says that valve Y could be the cause. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B - Answer 1. The correct answer is C, both technicians are right. Height control valves can fail in either direction-that is, by controlling the height at too great a level or at too low a level. If the truck leans, the cause can be either too great a height on one side or too low a height on the other. Until the technician knows that one side is too high or the other too low, he must assume that either valve might be malfunctioning. 4. The drive axles on a truck with a walking beam suspension are out of alignment in a manner that is causing vehicle tire wear and steering instability. Technician A says the cause could be that the torque rods are too long or too short. Technician B says the cause could be worn walking beam bushings. Who is right? A. Technician A only B. Technician B only C. Both A and B D. Neither A or B - Answer 4. The correct answer is B. The beam bushings maintain horizontal alignment of the axles, especially on turns. When bushings are worn, the beam on either side can move forward or backward, turning the axles in relation to the frame and causing the type of misalignment that causes tire wear and steering problems.