Buick Regal Owners & Service Manuals
Buick Regal 2018-2024 Service Manual / Engine / Engine Cooling / Repair Instructions / Radiator Drain Cock Replacement

Buick Regal: Radiator Drain Cock Replacement

Engine Cooling

Preliminary Procedures

1. Raise and support the vehicle. Lifting and Jacking the Vehicle.

2. Place a drain pan under the drain cock.

  1. Radiator Drain Cock

Procedure

  1. Fill the cooling system to the proper level.
  2. Start the engine and check for coolant leaks.

RADIATOR REPLACEMENT (2.0L LTG)

Removal Procedure

1. Drain the cooling system.

2.

Engine Cooling

Front Bumper Fascia (1) - Remove.

3.

Engine Cooling

Hood Primary Latch Mount Panel Bracket (3) - Remove.

4. Recover the refrigerant.

5.

Engine Cooling

Air Conditioning Condenser & Air Conditioning Condenser Bracket (1) - Remove.

6.

Engine Cooling

Charge Air Cooler (2) - Remove.

7.

Engine Cooling

Transmission Fluid Cooler Inlet and Outlet Pipe Retainer (1) @ Radiator - Remove [2x].

8. Transmission Fluid Cooler Inlet and Outlet Pipe Retainer (2) - Unclip.

9.

Engine Cooling

Transmission Fluid Cooler Inlet Pipe (1) @ Radiator - Remove.

10.

Engine Cooling

Transmission Fluid Cooler Outlet Pipe (1) @ Radiator - Remove.

11.

Engine Cooling

Electrical Connector (3) @ Air Conditioning Condenser Hose (2) - Disconnect.

12. Retainer (1, 4) - Unclip [2x].

13.

Engine Cooling

Ground Cable Nut (1) - Remove.

14. Ground Cable (2) - Remove.

15.

Engine Cooling

Electrical Connector (1) - Disconnect [2x].

16. Retainer (2) - Unclip.

17.

Engine Cooling

Clip (5) - Remove.

18. Disconnect the electrical connector. (4).

19. Clamp (6) - Remove.

20. Radiator Inlet Hose (3) - Remove.

21. Radiator Upper Bracket Bolt (1) - Remove.

22. Radiator Upper Bracket Nut (2) - Remove.

23. Radiator Upper Bracket (7) - Remove.

24.

Engine Cooling

Clamp (2) - Remove.

25. Radiator Outlet Hose (1) @ Radiator (3) - Remove.

26.

Engine Cooling

Radiator Upper Bracket Nut (1) - Remove.

27. Radiator Upper Bracket Bolt (2) - Remove.

28. Radiator Upper Bracket (3) - Remove.

29.

Engine Cooling

Radiator Assembly (1) - Remove.

30. Radiator Lower Insulator (2) - Remove [2x].

31.

Engine Cooling

Engine Coolant Fan Shroud Bolt (3) - Remove [2x].

32. Engine Coolant Fan (2) @ Radiator (1) - Remove.

33.

Engine Cooling

Radiator Upper Bracket (1) - Remove [2x] - Unlock the retaining tabs in direction of the arrow.

34. Radiator Lower Bracket (4) - Remove [2x] - Unlock the retaining tabs in direction of the arrow.

35. Radiator Sleeve (3) - Remove - Unlock the retaining tabs in direction of the arrow.

36. Remove the 4 radiator nuts (2, 5).

Installation Procedure

1.

Engine Cooling

Install the 4 radiator nuts (2, 5).

2. Radiator Upper Bracket (1) - Install [2x].

3. Radiator Lower Bracket (4) - Install [2x].

4. Radiator Sleeve (3) - Install.

5.

Engine Cooling

Engine Coolant Fan (2) @ Radiator (1) - Install.

CAUTION: Fastener Caution.

6. Engine Coolant Fan Shroud Bolt (3) - Install and tighten [2x] 5.1N.m (45 lb in).

7.

Engine Cooling

Radiator Lower Insulator (2) - Install [2x].

8. Radiator Assembly (1) - Install.

9.

Engine Cooling

Radiator Upper Bracket (3) - Install.

10. Radiator Upper Bracket Bolt (2) - Install and tighten7N.m (62 lb in).

11. Radiator Upper Bracket Nut (1) - Install and tighten7N.m (62 lb in).

12.

Engine Cooling

Radiator Outlet Hose (1) @ Radiator (3) - Install.

13. Clamp (2) - Install.

14.

Engine Cooling

Radiator Upper Bracket (7) - Install.

15. Radiator Upper Bracket Bolt (1) - Install and tighten7N.m (62 lb in).

16. Radiator Upper Bracket Nut (2) - Install and tighten7N.m (62 lb in).

17. Radiator Inlet Hose (3) - Install.

18. Clamp (6) - Install.

19. Connect the electrical connector. (4).

20. Clip (5) - Install [2x].

21.

Engine Cooling

Retainer (2) - Install.

22. Electrical Connector (1) - Connect [2x].

23.

Engine Cooling

Ground Cable (2) - Install.

24. Ground Cable Nut (1) - Install and tighten9N.m (80 lb in).

25.

Engine Cooling

Electrical Connector (3) @ Air Conditioning Condenser Hose (2) - Connect.

26. Retainer (1, 4) - Install [2x].

27.

Engine Cooling

Transmission Fluid Cooler Outlet Pipe (1) @ Radiator - Install.

28.

Engine Cooling

Transmission Fluid Cooler Inlet Pipe (1) @ Radiator - Install.

29.

Engine Cooling

Transmission Fluid Cooler Inlet and Outlet Pipe Retainer (1) @ Radiator - Install [2x].

30. Transmission Fluid Cooler Inlet and Outlet Pipe Retainer (2) - Install.

31.

Engine Cooling

Charge Air Cooler (2) - Install.

32.

Engine Cooling

Air Conditioning Condenser & Air Conditioning Condenser Bracket (1) - Install.

33.

Engine Cooling

Hood Primary Latch Mount Panel Bracket (3) - Install.

34. Recharge the refrigerant. Refrigerant Recovery and Recharging (R-1234yf).

35.

Engine Cooling

Front Bumper Fascia (1) - Install.

36. Fill the cooling system.

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