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Home >> Jaguar >> 2011 >> XJ Base >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> Noise, Vibration & Harshness -- XJ/X351 >> Noise, Vibration And Harshness >> Diagnosis And Testing >> Pinpoint Tests >> Pinpoint Test C: Idle Boom/Shake/Vibration/Shudder

Pinpoint Test C: Idle Boom/Shake/Vibration/Shudder

  1. C1: CHECK CABLE/HOSES 
    1. Check the engine compartment for any component that may be grounding between the engine and body or chassis.

      Example: air conditioning (A/C) hoses.

    Are the components OK?

    • Yes  : GO to  C2.
    • No  : Correct the condition. Repeat the Road Test as outlined.
  2. C2: CHECK THE COOLING RADIATOR 
    1. Check the engine cooling radiator mountings and bushings for security and condition. Check the radiator installation for any component that may have a touch condition.

    Are the installation and bushings OK?

    • Yes  : GO to  C3.
    • No  : Correct the condition. Repeat the Road Test as outlined.
  3. C3: CHECK THE EXHAUST SYSTEM 
    1. Carry out the exhaust system neutralizing procedure in this section.

    Is the exhaust system OK?

    • Yes  : Check and install new engine/transmission mounts as necessary. Repeat Road Test as outlined.
    • No  : Repair as necessary. Repeat Road Test.
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