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Air Conditioning (A/C) Clutch Air Gap Adjustment

WARNING: This page is about a different car, the 2013 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
SPECIAL TOOLS

G07950734
 Dial Indicator Gauge With Holding Fixture
100-002 or equivalent

3.7L and 5.0L vehicles 

  1. Check the clutch air gap at 3 equally spaced places between the clutch plate and the A/C clutch pulley.
    Fig 1: Checking Clutch Air Gap Between Clutch Plate And A/C Clutch Pulley (3.7L And 5.0L Vehicles)
    G06403443Courtesy of FORD MOTOR CO.

    5.4L (4V) vehicles 

  2. If the A/C compressor has not been removed from the vehicle, remove the lower front A/C compressor bolt.
    • To install, tighten to 25 Nm (18 lb-ft).
  3. NOTE: If carrying out the clutch air gap measurement with the A/C compressor removed from the vehicle, the Dial Indicator Gauge with Holding Fixture can be installed using the lower front A/C compressor bolt and a suitable nut.

    Using the A/C compressor bolt, attach the Dial Indicator Gauge with Holding Fixture to the bottom front compressor mounting boss with the gauge pin contacting the hub portion of the A/C clutch disc and hub and partially depressed.

    Fig 2: Attaching Dial Indicator Gauge With Holding Fixture To Bottom Front Compressor Mounting Boss
    G06403444Courtesy of FORD MOTOR CO.
  4. Disconnect the A/C clutch field coil electrical connector and correctly identify the positive side of the electrical connector.
  5. NOTE: To make sure of correct polarity, only attach the 12V power supply positive lead to the positive side of the electrical connector and the negative lead to the negative side.

    Using 2 fused jumper wires, engage the compressor clutch by connecting the A/C clutch field coil to the power and ground from a 12V power supply.

  6. Adjust the Dial Indicator Gauge to the zero position with the A/C clutch engaged.
  7. Disconnect the 12V power supply from the A/C clutch field coil.
  8. NOTE: When the 12V power supply is disconnected from the A/C clutch field coil, the clutch air gap measurement will be displayed on the runout gauge.

    Record the clutch air gap measurement shown on the runout gauge.

  9. Repeat the measurement at 2 additional equally spaced places on the disc portion of the A/C clutch disc and hub assembly.
  10. Remove the Dial Indicator Gauge with Holding Fixture from the vehicle and reinstall the lower front A/C compressor bolt.

    All vehicles 

  11. Remove the A/C clutch disc and hub. For additional information, refer to CLIMATE CONTROL .
  12. Add or remove A/C clutch disc and hub spacer(s) as needed.
  13. Install the A/C clutch disc and hub. For additional information, refer to CLIMATE CONTROL .
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