Compressor Clutch: Service and Repair

Clutch and Clutch Field Coil





4.0L Vehicles









4.6L or 5.4L Vehicles









Removal

All vehicles

1. Remove the A/C compressor. For additional information, refer to Air Conditioning (A/C) Compressor - 4.0L Service and Repair or Air Conditioning (A/C) Compressor - 4.6L, 5.4L Service and Repair.

2. Remove the A/C clutch disc and hub bolt.

1. Using the Compressor Clutch Holding Tool, hold the A/C clutch disc and hub.

2. Remove the A/C clutch disc and hub bolt.





3. Remove the A/C clutch disc and hub.

4. Remove the A/C clutch disc and hub spacer(s).

5. Remove the A/C compressor pulley snap ring.

4.0L vehicles

6. NOTICE: Do not use air tools. Damage to the Air Conditioning (A/C) compressor pulley or A/C compressor may result.

Remove the A/C compressor pulley.

1. Install the Compressor Pulley Remover.

2. Remove the A/C compressor pulley.





7. NOTICE: Do not use air tools. Damage to the Air Conditioning (A/C) clutch field coil or A/C compressor may result.

Remove the A/C clutch field coil.

1. Install the A/C Compressor Field Coil Remover.

2. Install the Compressor Pulley Remover.

3. Remove the A/C clutch field coil.





4.6L or 5.4L vehicles

8. NOTICE: Do not use air tools. Damage to the Air Conditioning (A/C) clutch field coil or A/C compressor may result.

Remove the A/C compressor pulley.

1. Install the A/C compressor shaft protector.

2. Install a suitable 3-jaw puller on the A/C compressor shaft protector and A/C compressor pulley.

3. Remove the A/C compressor pulley.





9. Remove the 3 A/C clutch field coil screws.

10. Detach the A/C clutch field coil electrical connector pin-type retainer and remove the A/C clutch field coil.

Installation

NOTE: A new A/C compressor may come equipped with a clutch and pulley. If not, the A/C clutch components should be reused unless obvious signs of damage are found. If excessive grooving is found, a new A/C clutch disc and hub and A/C compressor pulley must be installed together. Otherwise, each component can be installed individually where needed.

All vehicles

1. Visually inspect the A/C clutch disc and hub, A/C compressor pulley and A/C clutch field coil for damage.
- Inspect for physical damage, including cracked or melted components or discoloration due to excessive heat.

- Inspect for excessive wear, including grooving in the A/C clutch disc and hub or A/C compressor pulley that is more than fingernail depth.

- Inspect for roughness in the A/C compressor pulley bearing.

4.0L vehicles

2. Clean the A/C clutch field coil and pulley mounting surfaces.

3. NOTICE: Do not use air tools. Damage to the Air Conditioning (A/C) clutch field coil or A/C compressor may result.

Install the A/C clutch field coil.

1. Place the A/C clutch field coil on the A/C compressor with the A/C clutch field coil electrical connector correctly positioned.

2. Place the A/C Compressor Field Coil Installer on the A/C clutch field coil.

3. Place the A/C Compressor Coil Installer on the A/C Compressor Field Coil Installer.

4. Use the Compressor Pulley Remover to install the A/C clutch field coil.





4. Install the A/C compressor pulley.

4.6L or 5.4L vehicles

5. Install the A/C clutch field coil and attach the electrical connector pin-type retainer.

6. Install the 3 A/C clutch field coil screws.

7. NOTE: The Air Conditioning (A/C) compressor must be positioned on the press so that only the flat part of the A/C compressor housing is contacting the base with the A/C compressor shaft aligned with the center of the press shaft. If the A/C compressor is not installed correctly on the press, the A/C compressor and/or A/C compressor pulley will be damaged.

Install the A/C compressor pulley.

1. Install the A/C compressor on a suitable press.

2. Position the A/C compressor pulley on the A/C compressor.

3. Install the A/C Clutch Installer on the A/C compressor pulley.

4. Using the press, install the A/C compressor pulley.





All vehicles

8. Install the A/C compressor pulley snap ring.

9. Install the A/C clutch disc and hub spacer(s) and the A/C clutch disc and hub.

10. Install the A/C clutch disc and hub bolt.

1. Hold the A/C clutch disc and hub with the Compressor Clutch Holding Tool.

2. Tighten to 13 Nm (115 lb-in) for 4.0L vehicles. Tighten to 20 Nm (177 lb-in) for 4.6L or 5.4L vehicles.





11. Measure and adjust the clutch air gap by adding or removing A/C clutch disc and hub spacers. For additional information, refer to the A/C clutch air gap procedure.

12. Install the A/C compressor. For additional information, refer to Air Conditioning (A/C) Compressor - 4.0L Service and Repair or Air Conditioning (A/C) Compressor - 4.6L, 5.4L Service and Repair.