Valve-train or cam-chain area
High confidence
A light, regular tick at warm idle can come from the upper engine area.
Sample result
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Example result: rod knock. Preview only, not your vehicle.
Example result: rod knock. Preview only, not your vehicle.
Parked only. Advisory first check—not a diagnosis.
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Finished example · motorcycle
A light tick at idle has a few plausible starting points.
Illustrative example
This example follows the same result structure as a real WrenchEar check. It is advisory only, not a diagnosis, and does not identify a failed component.
Top possibilities
Exhaust shield or fastener
Medium confidence
A loose shield or mounting point can echo a metallic tick at idle.
Accessory or clutch-side noise
Low confidence
Idle speed and clutch position can change how a related noise presents.
Next checks
- 1. With the motorcycle parked and cool, look for a loose shield or visibly loose fastener.
- 2. Note whether the tick changes with engine speed or clutch position without revving hard.
- 3. Arrange a qualified inspection if the tick worsens, the engine runs poorly, or a warning appears.
Reference sample
Rod knock documented by the recording source
The source describes rod knock for this reference clip, and that does not identify a failed component in another vehicle.
Source: engine-knock.aif — Freesound user jlstaplesView source
Preview only — not your vehicle.
What we heard
A repeating, low mechanical knock is audible while the passenger-car engine is revved through the complete source recording.
What it might be
Connecting-rod bearing / rod-knock pattern. The source creator describes a bad car engine with rod knock. That supports the label for this reference clip, but it does not identify a failed component in another vehicle.
What not to do
Do not rev or drive a vehicle making a deep knock to reproduce the sound. Arrange professional inspection or roadside help instead.
Next check
Keep the vehicle parked and arrange a qualified professional inspection or roadside recovery.
Read more about safe use
This reference clip describes rod knock for that recording only. It does not confirm a failed component in another car or motorcycle, and WrenchEar is never a diagnosis or score.
Do not record while driving or rev a deep knock to reproduce it. If the sound may be serious, stop safely and arrange qualified inspection or roadside help.
The first saved analysis is free. Submitted recordings are stored with the analysis; WrenchEar does not promise recordings are private.
Reference example
Mechanic-Ready Report
Advisory only — not a diagnosis. $4.99 each on Free and Unlimited; included with Super.
Heard
A repeating low mechanical knock in the documented passenger-car reference clip.
Might be
The source describes rod knock; similar sounds can have other causes.
Limits
A recording cannot identify a failed component or establish another vehicle’s condition.
Safety
Do not rev a deep knock. Shut down safely and arrange inspection or roadside help.
Next check
Share the clip and vehicle context with a qualified professional for vehicle-specific inspection.
Share link
The share link includes the audio.
Anyone with that URL can open the report and copied audio.