Question

clutch noises are usually most noticeable when the engine is?

Answer 1

YOUR RIGHT ANSWER IS IDLING.


IDLING is the lowest stable operational speed / least fuel consumption state of an engine.

Answer 2

IDLING is the lowest stable operational speed / least fuel consumption state of an engine.

What causes clutch noise?

• Whistling or whining from the clutch can be caused e.g. by the release bearing running off-center, an off-center input shaft, or a defective pilot bearing.
• On the other hand, rattling noises may be due to load alterations if clutch disks are furnished with preliminary dampers.

What sound does a clutch make when it's going out?

• If you hear a high-pitched squeaking as you press the pedal then you know that you have a problem with your clutch.
• This sort of noise is usually associated with problems with the clutch release or throw-out bearings.

How is clutch noise diagnosed?

• Push in the clutch pedal, listen for squealing noises.
• If there are squealing noises when the engine speed and input shaft speed are different, the pilot bearing is bad.
• Check for fork vibrations.
• Very lightly push in the clutch pedal and if the noise goes away, there's probably a fork vibration problem.

What is clutch rattle?

• It sounds like a light knocking or growling sound.
• Gear rattle is an audible noise transmitted from the impacts between the transmission gear teeth.
• A vehicle engine's torsional vibrations (momentary angular acceleration) pass through a transmission causing the separation and resulting impact of the gear teeth.

What is clutch shudder?

• Clutch chatter is the initial shudder that occurs when a faulty clutch disk or clutch component first engages.
• This shudder or vibration may vibrate throughout the entire vehicle.
• It's often the result of worn or contaminated clutch components.

Hence, IDLING is an engine's lowest stable operating speed / lowest fuel consumption stage.

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