Compressor HVAC: Service and Repair

Air Conditioning (A/C) Compressor - 4.4L

Removal
1. Disconnect the battery ground cable.
2. Recover the air conditioning (A/C) refrigerant.
3. Remove the air cleaner.
4. Disconnect the A/C clutch electrical connector.







CAUTION: Make sure that all openings are sealed. Use new blanking caps.

5. Disconnect the refrigerant lines from the A/C compressor.
- Remove the 2 bolts.
- Remove and discard the 2 O-ring seals.







WARNING: Do not work on or under a vehicle supported only by a jack. Always support the vehicle on safety stands.

6. Raise and support the vehicle.

7. Remove the radiator splash shield.
8. Release the accessory drive belt.
- Rotate the tensioner assembly counter-clockwise.
- Release the accessory drive belt from the power steering pump pulley.







NOTE: 1 A/C compressor bolt will remain captive until the A/C compressor mounting bracket is repositioned.

9. Release the A/C compressor.
- Fully loosen the upper front bolt.
- Remove the remaining 2 bolts.







10. Reposition the A/C compressor mounting bracket.
- Remove the 2 bolts.







11. Remove the A/C compressor.
- Remove the bolt.

Installation
1. Install the A/C compressor.
- Install the upper front bolt.

NOTE: The upper front A/C compressor bolt must be installed to the A/C compressor mounting bracket before the A/C compressor mounting bracket is secured.

2. Secure the A/C compressor mounting bracket.
- Tighten the bolts to 25 Nm (18 lb.ft).

3. Secure the A/C compressor.
- Tighten the bolts to 25 Nm (18 lb.ft).

4. Secure the accessory drive belt.
- Rotate the tensioner assembly counter-clockwise.

5. Install the radiator splash shield.

CAUTION: Lubricate the new seals with clean refrigerant oil.

NOTE: Remove and discard the blanking caps.

6. Connect the refrigerant lines to A/C compressor.
- Clean the component mating faces.
- Install the new O-ring seals.
- Tighten the bolts to 10 Nm (7 lb.ft).

7. Connect the A/C clutch electrical connector.
8. Install the air cleaner.
9. Recharge the A/C system.
10. Connect the battery ground cable.