What is a symptom of a defective throwout bearing?

• A. Harsh shifting
• B. Squeal when the clutch pedal is released
• C. Squeal when the clutch pedal is depressed
• D. Vibrations at high speed

Answer: (C)

The symptom of a defective throwout bearing is typically characterized by a squeal when the clutch pedal is depressed. This noise occurs due to the bearing failing to properly support the clutch release mechanism. As the clutch pedal is pressed, the throwout bearing engages with the pressure plate, and if it is damaged or worn, it can produce a squealing sound as it struggles to function correctly. This is a clear indicator that the throwout bearing may need to be inspected or replaced.

Other symptoms associated with clutch operation may include harsh shifting or vibrations, but these are not directly linked to the performance of the throwout bearing itself. Squealing when the clutch pedal is released is generally not associated with the throwout bearing, indicating that the bearing is under compressive force when engaged. Understanding these nuances can help in diagnosing clutch-related issues accurately.