Compressor Replacement

Refrigeration System Components:

Refrigeration System Components - Legend:

A/C Compressor Mounting & Bracket:

Remove or Disconnect

1. Recover refrigerant
2. Raise and suitably support vehicle.
3. Serpentine drive belt.
4. Drive belt tensioner assembly.
5. Bolt/screw (30).
6. Bolt/screw (28).
7. Hose assembly (7) from compressor assembly (2).
^ Discard seals (18).
8. Lower transmission oil cooler pipe assembly at radiator assembly.
9. Electrical connector at compressor assembly (2).
10. Bolt/screw (41).
11. Bolts/screws (38).
12. Compressor assembly (2).
13. Bolts/screws (39) and bracket (40), if necessary.

Install or Connect

1. Polyalkaline 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 that 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. Bracket (40) and bolts/screws (39), if removed.

Tighten
^ Bolts/screws (39) to 25 N.m (18 lb. ft.).

3. Compressor assembly (2).
4. Bolts/screws (38).

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

5. Bolt/screw (41).

Tighten
^ Bolt/screw (41) to 33 N.m (24 lb. ft.).

6. Electrical connector at compressor assembly (2).
7. Lower transmission oil cooler pipe assembly at radiator assembly.
8. Seals (18) to hose assembly (7).
^ Lightly coat seals with mineral base 525 viscosity refrigerant oil.
9. Hose assembly (7) to compressor assembly (2).
10. Bolt/screw (28).

Tighten
^ Bolt/screw (28) to 33 N.m (24 lb. ft.).

13. Bolt/screw (30).

Tighten
^ Bolt/screw (30) to 10 N.m (89 lb. in.).

14. Drive belt tensioner assembly.
15. Serpentine drive belt.
16. Lower vehicle.
17. Charge A/C system
18. Leak-test A/C system.