Buick Regal: Radiator Replacement (3.6L LGX)
Removal Procedure
1. Drain the cooling system.
2. Front Bumper Fascia - Remove.
3.
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Hood Primary Latch Mount Panel Bracket (3) - Remove.
4. Recover the refrigerant.
5.
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Air Conditioning Condenser Bracket (1) - Remove.
6. Transmission Fluid Cooler Inlet and Outlet Pipe Retainer @ Engine Cooler Fan - Remove.
7.
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Transmission Fluid Cooler Inlet Pipe (1) @ Radiator - Remove.
8.
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Transmission Fluid Cooler Outlet Pipe (2) @ Radiator - Remove.
9. Intake Air Duct - Remove.
10.
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Remove the engine coolant fan wiring harness ground nut (1).
11. Remove the engine coolant fan wiring harness (2) from the front end upper tie bar support.
12. Retainer @ Radiator - Unclip.
13.
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Electrical Connector (1) - Disconnect [2x].
14.
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Clamp (4) - Disengage.
15. Radiator Inlet Hose (3) - Remove.
16. Radiator Upper Bracket (5) - Remove.
17.
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Clamp (1) - Disengage.
18. Radiator Outlet Hose (2) @ Radiator - Remove.
19.
Radiator Upper Bracket (3) - Remove.
20.
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Radiator Sleeve (3) - Remove.
21.
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Radiator Assembly (1) - Remove.
22. Radiator Lower Insulator (2) - Remove [2x].
23.
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Engine Coolant Fan Shroud Clip (1) @ Engine Coolant Fan - Remove.
24.
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Engine Coolant Fan Shroud Bolt (3) - Remove [2x].
25. Engine Coolant Fan (2) @ Radiator (1) - Remove.
26.
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Radiator Upper Bracket (1) - Remove [2x].
27. Radiator Lower Bracket (4) - Remove [2x].
28. Remove the 4 radiator nuts (2, 5).
Installation Procedure
1.
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Install the 4 radiator nuts (2, 5).
2. Radiator Upper Bracket (1) - Install [2x].
3. Radiator Lower Bracket (4) - Install [2x].
4.
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Engine Coolant Fan (2) @ Radiator (1) - Install.
CAUTION: Refer to Fastener Caution.
5. Engine Coolant Fan Shroud Bolt (3) - Install and tighten [2x] 5.1N.m (45 lb in).
6.
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Engine Coolant Fan Shroud Clip (1) @ Engine Coolant Fan - Install.
7. Radiator Lower Insulator (2) - Install [2x].
8.
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Radiator Assembly (1) - Install.
9.
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Radiator Sleeve (3) - Install.
10.
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Radiator Upper Bracket (3) - Install.
11.
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Radiator Outlet Hose (2) @ Radiator - Install.
12. Clamp (1) - Engage.
13.
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Radiator Upper Bracket (5) - Install.
14. Radiator Inlet Hose (3) - Install.
15. Clamp (4) - Engage.
16.
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Electrical Connector (1) - Connect [2x].
17. Retainer @ Radiator - Install.
18.
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Install the engine coolant fan wiring harness (2) to the front end upper tie bar support.
19. Install and tighten the engine coolant fan wiring harness ground nut (1).
20. Intake Air Duct - Install.
21.
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Transmission Fluid Cooler Outlet Pipe (2) @ Radiator - Install.
22.
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Transmission Fluid Cooler Inlet Pipe (1) @ Radiator - Install.
23. Transmission Fluid Cooler Inlet and Outlet Pipe Retainer @ Engine Cooler Fan - Install.
24.
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Air Conditioning Condenser Bracket (1) - Install.
25.
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Hood Primary Latch Mount Panel Bracket (3) - Install.
26. Recharge the refrigerant.
27. Front Bumper Fascia - Install.
28. Fill the cooling system.
READ NEXT:
Radiator Lower Insulator Replacement
Preliminary Procedure
Radiator Replacement (2.0L LTG) or Radiator Replacement (3.6L LGX)
Radiator Lower Insulator [2x]
RADIATOR AIR LOWER BAFFLE REPLACEMENT
Removal Procedure
1. Front Bumper Fasci
Cooling Fan Description and Operation
System Overview
The engine cooling fan system consists of 2 electric cooling fans and 3 fan
relays. The cooling fan relays
are arranged in a series/parallel (S/P) configuration. This allows the engin
SEE MORE:
DTC B2600 or B2605
Diagnostic Instructions
Perform the Diagnostic System Check - Vehicle prior to using this
diagnostic procedure.
Review Strategy Based Diagnosis for an overview of the diagnostic
approach.
Diagnostic Procedure Instructions provides an overview of each
diagnostic category.
DTC Descriptors
D
DTC C0176
Diagnostic Instructions
Perform the Diagnostic System Check prior to using this diagnostic
procedure:Diagnostic System
Check - Vehicle
Review the description of Strategy Based Diagnosis:Strategy Based
Diagnosis
An overview of each diagnostic category can be found here:Diagnostic
Procedure
