Compressor Replacement

Refrigerant Lines & Hoses:

A/C Compressor Mounting & Brackets:

Important
^ Compressor related noise is generally A/C system related and not always the compressor itself.

Remove or Disconnect

1. Recover refrigerant.
2. Serpentine drive belt.
3. Electrical connector at compressor (2).
4. Raise and suitably support vehicle.
5. Bolt/screw (28).
6. Nut mounting battery positive cable to stud (44).
7. Nut (39) mounting A/C compressor front bracket (60).
8. Bolts/screws (38) mounting A/C compressor front bracket (60).
9. A/C compressor and condenser hose (7) from compressor (2).
10. Stud (44).
11. Bolts/screws (55).
12. Bolt/screw (57).
13. Compressor (2).
14. A/C compressor from bracket (60).
15. Bolts/screws (62) mounting A/C compressor rear bracket (61).
16. A/C compressor rear bracket (61).

Install or Connect

1. Poly alkaline glycol (PAG) refrigerant oil.
^ If compressor assembly (2) is being replaced, drain refrigerant oil from both defective compressor and new replacement compressor. Measure amount removed from defective compressor. If measured amount is less than 30 ml (1 fluid ounce), add 60 ml (2 fluid ounces) to new replacement compressor. If more than 30 ml (1 fluid ounce) is drained from defective compressor add same amount to new compressor. Use PAG refrigerant oil GM P/N 12345923 or equivalent.
2. A/C compressor rear bracket (61).
3. Loosely install bolts/screw (62) mounting A/C compressor rear bracket (61).
4. A/C compressor front bracket (60) to compressor (2).
5. Compressor (2).
56. Bolt/screw (57).

Tighten
^ Bolts/screws (57) to 27 N.m (20 lb. ft.).

7. Bolts/screws (55).

Tighten
^ Bolts/screw (55) to 50 N.m (37 lb. ft.).

8. Loosely install stud (44).
9. Seal (18) to A/C compressor and condenser hose (7).
^ Lightly coat seals with mineral base 525 viscosity refrigerant oil.
10. A/C compressor and condenser hose (7) to compressor (2).
11. Bolts/screws (38) mounting A/C compressor front bracket (60).

^Tighten
^ Bolts/screws (38) to 50 N.m (37 lb. ft.).

12. Nut (39) mounting A/C compressor front bracket to compressor (2).

Tighten
^ Nut (39) to 50 N.m (37 lb. ft.).

13. Bolt/screw (28).

Tighten
^ Bolts/screw (62) to 25 N.m (19 lb. ft.).
^ Stud (44) to 50 N.m (37 lb. ft.).
^ Bolt/screw (28) to 33 N.m (24 lb. ft.).

14. Battery positive cable and mounting nut to stud (44).

Tighten
^ Nut to 25 N.m (18 lb. ft.).

15. Lower vehicle.
16. Electrical connector to compressor (2).
17. Serpentine drive belt.
18. Charge A/C system.
19. Leak-test A/C system.