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Jeep Cherokee
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Differential and driveline » 8 1/4 Rear axle » Diagnosis and testing
Driveline snap

A snap or clunk noise when the vehicle is shifted into gear (or the clutch engaged), can be caused by:

  •  High engine idle speed.
  •  Transmission shift operation.
  •  Loose engine/transmission/transfer case mounts.
  •  Worn U-joints.
  •  Loose spring mounts.
  •  Loose pinion gear nut and yoke.
  •  Excessive ring gear backlash.
  •  Excessive side gear to case clearance.

The source of a snap or a clunk noise can be determined with the assistance of a helper. Raise the vehicle on a hoist with the wheels free to rotate. Instruct the helper to shift the transmission into gear. Listen for the noise, a mechanics stethoscope is helpful in isolating the source of a noise.

    More about «Diagnosis and testing»:

    General information

    Gear noise

    Bearing noise

    Vibration

    Driveline snap

    Trac-lok differential noise

    Trac-lok test

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