ASE A3 Certification Practice Test

41.

Answer A is correct. The shift lever bushing is MOST likely at fault. Shifter bushings are plastic and grommets that provide a tight fit and a smooth feel while keeping the shifter firmly in the proper shift rail. View the illustration in the Read more... section.

Answer B is wrong. Shift rails have detent notches machined into their sides. A spring-loaded ball fits into the notch to keep the transmission in gear.

Answer C is wrong. The shift rail should slide easily in its bore and have no lateral up and down or side-to-side movement.

Answer D is wrong. Shift rods are external, and shift rails are inside the transmission. Shift rods require a different type of bushing that provides a tight fit and smooth movement whenever the linkage connects.

42.

Answer A is correct. A left-hand turn would reveal a faulty right-side bearing because the weight and inertia of the vehicle are pushing on the right front wheel.

Answer B is wrong. A faulty outer CV-Joint typically makes a clicking or clacking sound while slowly turning corners.

Answer C is wrong. A right-hand turn would work the left-side wheel bearing because the vehicle's weight has now shifted to the left wheel.

Answer D is wrong. Both cupped tires and faulty wheel bearings cause a similar growling noise while driving. This problem can make it difficult to distinguish between the two in operation. A cupped tire changes its pitch from one surface to another. This change in pitch is true with all tires but much more pronounced with a cupped or scalloped tire.

43.

Answer A is wrong. In time, the friction material wears, and the splines and tabs become rounded. Because limited-slip differentials are designed to provide smooth cornering, the symptoms of a worn or damaged differential can become most apparent while taking turns.

Answer B is wrong. Always use the recommended fluid; special limited-slip differential fluid compliments the engagement and release of the limited-slip components.

Answer C is correct. Both A and B are correct. Limited slip differentials lock the two rear wheels together while traveling in a straight line but allow one wheel to slip while turning. By overcoming the tension of its clutch, the two wheels can rotate at different speeds during turns.

Answer D is wrong. Use only the manufacturer’s recommended fluid when servicing a limited-slip differential. Servicing with the wrong type of fluid results in vibration and chatter.

44.

Answer A is correct. A faulty pilot bearing is loudest when the clutch pedal is fully depressed and the clutch is disengaged. The input shaft and the crankshaft flange are now rotating at different speeds.

Answer B is wrong. Answer A is correct. Excessive clutch pedal free travel results in clutch drag.

Answer C is wrong. The clutch pilot bearing is a ball, roller, or brass bushing that centers the transmission's input shaft in the crankshaft flange.

Answer D is wrong. They produce a squeal or grinding sound when the clutch is disengaged

45.

Answer A is wrong. They're both correct; a faulty inboard trunion makes a thunking noise while accelerating and decelerating in a straight line.

Answer B is wrong. A worn or faulty outboard CV joint makes its most noise while cornering. While road testing, listen for a clicking or clacking noise while slowly taking a sharp left or right-hand turn.

Answer C is correct. Both technicians are correct.

Answer D is wrong. Many of these axles have a vibration damper. Inspect the damper if the vehicle suffers from front-end vibration that's most apparent at higher speeds.