Buick Regal: Heater and Air Conditioning Evaporator Case Replacement
Removal Procedure
1. Heater and Air Conditioning Evaporator and Blower Module - Remove.
2.
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{ If equipped }Auxiliary Heater Core(2) - Remove.
3.
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Heater Core(1) - Remove.
4.
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Heater and Air Conditioning Evaporator Case Bolt(1) - Remove[5x].
5.
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Heater and Air Conditioning Evaporator Case(1) - Remove.
6. Unlock the retaining tabs.
7. Transfer components as necessary.
Installation Procedure
1.
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NOTE: This step only needs to be performed if the vehicle is equipped with an auxiliary heater core.
Cut out the auxiliary heater core cover along the marked line (1) from the new heater and air conditioning evaporator case.
2.
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Heater and Air Conditioning Evaporator Case(1) - Install.
3.
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CAUTION: Fastener Caution
Heater and Air Conditioning Evaporator Case Bolt(1) - Install and tighten[5x] 2.5N.m (22 lb in).
4.
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Heater Core(1) - Install.
5.
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{ If equipped }Auxiliary Heater Core(2) - Install.
6. Heater and Air Conditioning Evaporator and Blower Module - Install.
READ NEXT:
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
Floor Front Air Outlet Duct Replacement - Right Side
Preliminary Procedure
Instrument Panel Lower Trim Panel Insulator Replacement.
Floor Front Air Outlet Duct Bolt
CAUTION: Refer to Fastener Caution.
Tighten
1.5 N.m (13 lb in)
Floor Front Air Ou
Special Tools and Equipment
SPECIAL TOOLS
BO-38185
J-38185
Hose Clamp Pliers
GE-8800
J-43600
ACR 2000 Air
Conditioning
Service Center
GE-39400-A
J-39400-A
Halogen Leak
Detector
GE-41447
J-41447
R-134a/R123yf
A/C Tracer Dye -
SEE MORE:
Cylinder Head Removal
Special Tools
EN 38188 Cylinder Head Broken Bolt Extractor Kit - or equivalent aftermarket
tool
For equivalent regional tools, refer to Special Tools.
1.
Remove and discard the cylinder head bolts (1).
CAUTION: In order to prevent damage to the valves and injectors during
cylinder head
removal,
Schematic Wiring Diagrams
RADIO/NAVIGATION SYSTEM WIRING SCHEMATICS (IOB)
Power, Ground, Serial Data and Subsystem References
Infotainment Display and Radio Controls
Antennas
Speakers
Auxiliary Inputs (MCY)
RADIO/NAVIGATION SYSTEM WIRING SCHEMATICS (IOR)
Power, Ground, Serial Data and Subsystem References
Infotainment
