Buick Regal: Air Conditioning Evaporator Tube Replacement (LTG)
Removal Procedure
1. Recover the refrigerant.
2.
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Air Cleaner Assembly(1) - Remove.
3. Front Compartment Air Deflector - Remove.
4. Front Wheelhouse Liner-Right Side - Remove.
5. Front Bumper Fascia - Remove.
6.
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Engine Mount-Right Side(3) - Remove.
7.
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Air Conditioning Compressor and Condenser Hose(1)@Air Conditioning Condenser - Remove.
8.
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Air Conditioning Evaporator Tube(1) - Remove.
9. Remove and DISCARD the sealing washer.(2).
10.
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Air Conditioning Evaporator Tube(1)@Front End Upper Tie Bar - Remove.
11.
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Air Conditioning Evaporator Tube(1)@Front Compartment Inner Side Rail - Remove.
12.
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Air Conditioning Compressor and Condenser Hose(1)@Air Conditioning Evaporator Tube - Remove.
13.
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Air Conditioning Evaporator Tube Nut(2) - Remove.
14. Air Conditioning Evaporator Tube(1)@Front Compartment Inner Side Rail - Remove.
15.
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Air Conditioning Evaporator Tube Nut(3) - Remove.
16. Air Conditioning Evaporator Tube(2) - Remove.
17. Remove and DISCARD the sealing washer.(1)[2x].
Installation Procedure
1.
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Install NEW sealing washers.(1)[2x].
2. Air Conditioning Evaporator Tube(2) - Install.
CAUTION: Refer to Fastener Caution.
3. Air Conditioning Evaporator Tube Nut(3) - Install and tighten19 N.m (14 lb ft).
4.
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Air Conditioning Evaporator Tube(1)@Front Compartment Inner Side Rail - Install.
5. Air Conditioning Evaporator Tube Nut(2) - Install and tighten 9 N.m (80 lb in).
6.
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Air Conditioning Compressor and Condenser Hose(1)@Air Conditioning Evaporator Tube - Install.
7.
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Air Conditioning Evaporator Tube(1)@Front Compartment Inner Side Rail - Install.
8.
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Air Conditioning Evaporator Tube(1)@Front End Upper Tie Bar - Install.
9.
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Install NEW sealing washers.(2).
10. Air Conditioning Evaporator Tube(1) - Install.
11.
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Air Conditioning Compressor and Condenser Hose(1)@Air Conditioning Condenser - Install.
12.
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Engine Mount-Right Side(3) - Install.
13.
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Air Cleaner Assembly(1) - Install.
14. Recharge the refrigerant.
15. Inspect for refrigerant leaks.
16. Front Bumper Fascia - Install.
17. Front Wheelhouse Liner-Right Side - Install.
18. Front Compartment Air Deflector - Install.
AIR CONDITIONING EVAPORATOR TUBE REPLACEMENT (LGX)
Removal Procedure
1. Recover the refrigerant.
2. Front Compartment Air Deflector - Remove.
3. Front Wheelhouse Liner-Right Side - Remove.
4. Front Bumper Fascia - Remove.
5.
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Engine Mount-Right Side(2) - Remove.
6.
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Air Conditioning Compressor and Condenser Hose(1)@Air Conditioning Condenser - Remove.
7.
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Air Conditioning Evaporator Tube(1) - Remove.
8. Remove and DISCARD the sealing washer.(2).
9.
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Air Conditioning Evaporator Tube(1)@Front End Upper Tie Bar - Remove.
10.
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Air Conditioning Evaporator Tube(1)@Front Compartment Inner Side Rail - Remove.
11.
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Air Conditioning Compressor and Condenser Hose(1)@Air Conditioning Evaporator Tube - Remove.
12.
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Air Conditioning Evaporator Tube Nut(2) - Remove.
13. Air Conditioning Evaporator Tube(1)@Front Compartment Inner Side Rail - Remove.
14.
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Air Conditioning Evaporator Tube Nut(3) - Remove.
15. Air Conditioning Evaporator Tube(2) - Remove.
16. Remove and DISCARD the sealing washer.(1)[2x]
Installation Procedure
1.
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Install NEW sealing washers.(1)[2x].
2. Air Conditioning Evaporator Tube(2) - Install.
CAUTION: Refer to Fastener Caution.
3. Air Conditioning Evaporator Tube Nut(3) - Install and tighten 19 N.m (14 lb ft).
4.
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Air Conditioning Evaporator Tube(1)@Front Compartment Inner Side Rail - Install.
5. Air Conditioning Evaporator Tube Nut(2) - Install and tighten 9 N.m (80 lb in).
6.
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Air Conditioning Compressor and Condenser Hose(1)@Air Conditioning Evaporator Tube - Install.
7.
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Air Conditioning Evaporator Tube(1)@Front Compartment Inner Side Rail - Install.
8.
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Air Conditioning Evaporator Tube(1)@Front End Upper Tie Bar - Install.
9.
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Install NEW sealing washers.(2).
10. Air Conditioning Evaporator Tube(1) - Install.
11.
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Air Conditioning Compressor and Condenser Hose(1)@Air Conditioning Condenser - Install.
12.
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Engine Mount-Right Side(2) - Install.
13. Recharge the refrigerant.
14. Inspect for refrigerant leaks.
15. Front Bumper Fascia - Install.
16. Front Wheelhouse Liner-Right Side - Install.
17. Front Compartment Air Deflector - Install.
READ NEXT:
Receiver and Dehydrator Replacement
Preliminary Procedure
1. Recover the refrigerant.
2. Radiator Air Lower Baffle Replacement.
Air Conditioning Receiver and Dehydrator Plug
Air Conditioning Receiver and Dehydrator Plug Retaining R
Heater and Air Conditioning Evaporator Case Replacement
Removal Procedure
1. Heater and Air Conditioning Evaporator and Blower Module - Remove.
2.
{ If equipped }Auxiliary Heater Core(2) - Remove.
3.
Heater Core(1) - Remove.
4.
Heater and Air Conditi
Air Conditioning Evaporator Replacement
Removal Procedure
1. Air Conditioning Evaporator and Blower Case Replacement - Remove.
2.
Heater and Air Conditioning Evaporator and Blower Upper Case Bolt(1) -
Remove[11x].
3. Heater and Air Cond
SEE MORE:
HVAC - Automatic
SPECIFICATIONS
FASTENER TIGHTENING TORQUE SPECIFICATIONS
Reusable Threaded Fastener Tightening Specifications
NOTE:
All fasteners listed in this table can be reused after removal.
SCHEMATIC WIRING DIAGRAMS
HVAC WIRING SCHEMATICS
HVAC Module Power, Ground, Serial Data, and Subsystem References
HVAC
DTC B1277 (IO5/IO6)
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.
Refer to Diagnostic Procedure Instructions provide an overview of each
diagnostic category.
DTC Descr
