Front Wheel Diagnosis Procedure


1. Grease Under Front of Vehicle (No Noise)

Diagnostic Procedure — Boot examination

  • A torn boot is the most common cause of CV Joint failure
  • Grease on suspension, inner tyre sidewall or fender will indicate a torn boot.
  • A small cut or tear; the grease is clean and the joint is not making any unusual noise… Install a Boot Kit.
  • A large tear; the boot nearly gone; the grease is contaminated or no grease in the joint. The CV Joint will probably need replacing.

2. Snapping or Clicking coming from wheel when accelerating around a corner

Diagnosic Procedure — Outboard Joint Problem.

Test drive the vehicle on a smooth surface and verify the problem by:

  • Lightly accelerate or back up with wheels turned; Listen for snapping or clicking noise at the wheel.
  • If noise remains constant or disappears — the Wheel Bearing is the Problem.
  • If the noise gets louder, the CV Joint is worn.
  • A badly worn CV Joint will snap, click or vibrate when Driving Straight Ahead.
  • Install a new CV Joint and Boot Kit (Service Kit) if the problem is positively identified as the outboard CV Joint.

3. Clunk or Vibration when excelerating or deaccelerating

Diagnostic Procedure — Inboard Joint Problem

  • Test Drive vehicle on a smooth surface, accelerating hard straight ahead.
  • A vibration or shudder indicates a worn or sticking inboard plunge joint.
  • Accelerating over a driveway ramp at an angle.
  • A clunking noise indicates a worn inboard joint.

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