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Home >> Cadillac >> 1994 >> Fleetwood V8-5.7L VIN P >> Repair and Diagnosis >> Heating and Air Conditioning >> Compressor HVAC >> Service and Repair >> Compressor Replacement
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Compressor Replacement

AIR CONDITIONING COMPRESSOR









Remove or Disconnect
1. Recover refrigerant.
2. Radiator fan upper shroud and radiator outlet hose and pipe, if vehicle is equipped with a mechanical engine cooling fan.
3. Nut(22).
4. Hose (8) from compressor (4).
^ Plug open lines and ports.
^ Discard seals (25).

5. Raise and suitably support vehicle.
6. Serpentine drive belt.
7. Drive belt tensioner.
8. Bolts/screws (23 or 24).
9. Nut (27).
^ Use a 9/16 inch deep-well socket and 3/8 drive ratchet.
^ If unsuccessful, remove right engine mount through bolt/screw and slightly raise engine for additional clearance.

10. Electrical connector at compressor (4).
11. Compressor (4).
12. Bolts/screws (28) and brace (29), if necessary.


Install or Connect
1. Polyalkylene glycol (PAG) refrigerant oil.
If compressor (4) 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 30 ml (1 fluid ounce) 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/PN 12345923 or equivalent.

2. Brace (29) and bolts/screws (28), if removed.

Tighten Bolts/screws (28) to 25 N.m (18 ft. lb.)

3. Compressor (4).
4. Electrical connector at compressor (4).
5. Nut (27).
^ Do not tighten at this time.

6. Bolts/screws (23 or 24).

Tighten
. Bolts/screws (23 or 24) to 50 N.m (37 ft. lb.).
B. Nut (27) to 41 N.m (30 ft. lb.).

7. Lower engine, if raised.
8. Engine mount through bolt/screw, if removed.

Tighten Engine mount through bolt/screw to 95 N.m (70 ft. lb.)

9. Drive belt tensioner.
10. Serpentine drive belt.
11. Lower vehicle.

12. Seals (25) to hose (8).
^ Coat seals (25) with 525 viscosity mineral base refrigerant oil GM/PN 12301108.

13. Hose (8) to compressor (4).
14. Nut (22).

Tighten Nut (22) to 35 N.m (26 ft. lb.)

15. Radiator outlet hose and pipe, and radiator fan upper shroud, if removed.
16. Charge A/C system.
17. Leak test fittings.
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