Compressor Replacement

REMOVAL PROCEDURE

IMPORTANT: Compressor related noise is generally air conditioning (A/C) system related and not always the compressor itself. Prior to replacing the compressor refer to Noise Diagnosis - A/C System.




1. Recover the refrigerant.
2. Raise and suitably support the vehicle.
3. Remove the serpentine drive belt.
4. Remove the air conditioning (A/C) compressor and condenser hose bolt.
5. Discard the O-ring.




6. Remove the transmission oil cooler pipes from the engine bracket, if necessary.




7. Disconnect the electrical connector from the A/C compressor.




8. Remove the A/C compressor bolts.
9. Remove the A/C compressor.

INSTALLATION PROCEDURE

IMPORTANT: NEW A/C compressors are shipped WITHOUT Poly-Alkylene Glycol (PAG) oil.




1. If a NEW A/C compressor is being installed, add 60 ml (2 oz) of PAG oil to the compressor.
2. If reinstalling the old A/C compressor perform the following:
2.1. Drain, measure and record the amount of PAG oil in the A/C compressor.
2.2. If the measured amount of PAG oil drained is less than or equal to 60 ml (2 oz), add 60 ml (2 oz) of new, clean PAG oil to the A/C compressor.
2.3. If the measured amount of PAG oil drained is greater than 60 ml (2 oz), add the same amount of new, clean PAG oil to the A/C compressor.

NOTE: Refer to Fastener Notice in Service Precautions.

2.4. Install the compressor crankcase oil drain bolt (1) to the replacement compressor.

Tighten
Tighten the compressor crankcase oil drain bolt (1) to 20 N.m (15 lb ft).

3. Install the A/C compressor.
4. Install the A/C compressor bolts.

Tighten
Tighten the A/C compressor bolts to 50 N.m (37 lb ft).




5. Connect the electrical connector to the A/C compressor.




6. Install the transmission oil cooler pipes to the engine bracket, if removed.




7. Install a new O-ring. Lightly coat the O-ring with a mineral base 525 viscosity refrigerant oil.
8. Install the A/C compressor and condenser hose bolt.

Tighten
Tighten the A/C compressor and condenser hose bolt to 33 N.m (24 lb ft).

9. Install the serpentine drive belt.
10. Lower the vehicle.
11. Recharge the A/C system.
12. Perform a leak test on the A/C system.