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Home >> Jaguar >> 2011 >> XK 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 51 (Climate Control System - General Information -- XK/X150) >> Climate Control System - General Information >> Diagnosis And Testing >> Pinpoint Tests >> Pinpoint Test G: Air Conditioning System Noise Tests

Pinpoint Test G: Air Conditioning System Noise Tests

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  1. G1: AIR CONDITIONING SYSTEM NOISE TEST 1 
    1. Reproduce the reported air conditioning system noise

    Is the noise present only when the air conditioning system to operating?

    • Yes  : GO to  G2.
    • No  : GO to  G5.
  2. G2: AIR CONDITIONING SYSTEM NOISE TEST 2 
    1. Check the installation of the air conditioning pipes:
      • Check that all brackets are present and secure
      • Check for foul conditions

    Is the noise caused by a problem with the air conditioning pipe installation?

    • Yes  : Rectify as necessary. Re-test the system
    • No: GO to  G3.
  3. G3: AIR CONDITIONING SYSTEM NOISE TEST 3 
    1. Set the air conditioning to on and check assess the duration of the noise

    Does the noise occur for a short period immediately after setting the air conditioning to on?

    • Yes  : Refer to the relevant section of the service information and install a new thermostatic expansion valve. Re-test the system
    • No: GO to  G4.
  4. G4: AIR CONDITIONING SYSTEM NOISE TEST 4 
    1. Using the manufacturer approved equipment, recover the refrigerant

    Was the weight of the recovered refrigerant different than specified for the air conditioning system?

    • Yes  : Using the manufacturer approved equipment, evacuate and recharge the air conditioning system with the correct quantity of refrigerant and oil
    • No  : GO to PINPOINT TEST C .
  5. G5: AIR CONDITIONING SYSTEM NOISE TEST 5 
    1. Assess the source of the noise

    Is the noise caused by the air conditioning compressor (bearing, contact between rotating and fixed components)?

    • Yes  : Refer to the relevant section of the service information and install a new air conditioning compressor
    • No  : No further action
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