Chevrolet Trax: Heater and air conditioning evaporator and blower module removal and
installation
Removal Procedure
- Disconnect the negative battery cable. Refer to Battery Negative Cable
Disconnection and
Connection .
- Recover the refrigerant system. Refer to Refrigerant Recovery and
Recharging (R-134a).
- Drain the engine coolant system. Refer to Cooling System Draining
and Filling .
- Remove the heater inlet hose from the heater core tube. Refer to Heater
Inlet Hose Replacement (LUJ,
LUV), Heater Inlet Hose Replacement (2H0).
- Remove the heater outlet hose from the heater core tube. Refer to Heater
Outlet Hose Replacement
(2H0), Heater Outlet Hose Replacement (LUJ, LUV), Heater Outlet Hose
Replacement (LUJ, LUV
Rear).
- Remove the evaporator hose assembly from the thermal expansion valve.
Refer to Air Conditioning
Evaporator Hose Assembly Replacement (LUJ, LUV), Air Conditioning Evaporator
Hose
Assembly Replacement (2H0).
- Remove the right side floor rear air outlet duct. Refer to Floor Front
Air Outlet Duct Replacement -
Right Side.
- Remove the left side floor rear air outlet duct. Refer to Floor Front
Air Outlet Duct Replacement - Left
Side (Encore), Floor Front Air Outlet Duct Replacement - Left Side (Trax).
- Remove the instrument panel tie bar assembly. Refer to Instrument Panel
Tie Bar Replacement .
![Fig. 43: HVAC Module Assembly Drain Tube](images/manuals/4484/index44(10).gif)
Fig. 43: HVAC Module Assembly Drain Tube
- Remove the Heating Ventilation and Air Conditioning (HVAC) module
assembly drain tube (1) from the
HVAC module assembly.
![Fig. 44: HVAC Module Assembly And Cowl Panel](images/manuals/4484/index45(10).gif)
Fig. 44: HVAC Module Assembly And Cowl Panel
- From within the engine compartment, remove the HVAC module assembly nut,
(1) securing the HVAC
module assembly to the cowl panel.
![Fig. 45: HVAC Module Assembly](images/manuals/4484/index46(10).gif)
Fig. 45: HVAC Module Assembly
- Remove the HVAC module assembly (1) from the vehicle.
- Transfer all necessary components.
Installation Procedure
![Fig. 46: HVAC Module Assembly](images/manuals/4484/index47(10).gif)
Fig. 46: HVAC Module Assembly
- Position the HVAC module assembly (1) into the vehicle and temporarily
support it.
![Fig. 47: HVAC Module Assembly And Cowl Panel](images/manuals/4484/index48(9).gif)
Fig. 47: HVAC Module Assembly And Cowl Panel
CAUTION: Refer to Fastener Caution .
- From within the engine compartment, install the HVAC module assembly nut
(1) securing the HVAC
module assembly to the cowl panel, and tighten to 22 (16 lb ft)
![Fig. 48: HVAC Module Assembly Drain Tube](images/manuals/4484/index49(9).gif)
Fig. 48: HVAC Module Assembly Drain Tube
- Install the HVAC module assembly drain tube (1) to the HVAC module
assembly.
- Install the instrument panel tie bar assembly. Refer to Instrument Panel
Tie Bar Replacement .
- Install the left side floor rear air outlet duct. Refer to Floor Front
Air Outlet Duct Replacement - Left
Side (Encore), Floor Front Air Outlet Duct Replacement - Left Side (Trax).
- Install the right side floor rear air outlet duct. Refer to Floor Front
Air Outlet Duct Replacement -
Right Side.
- Install the evaporator hose assembly to the thermal expansion valve.
Refer to Air Conditioning
Evaporator Hose Assembly Replacement (LUJ, LUV), Air Conditioning Evaporator
Hose
Assembly Replacement (2H0).
- Install the heater outlet hose to the heater core tube. Refer to Heater
Outlet Hose Replacement (2H0),
Heater Outlet Hose Replacement (LUJ, LUV), Heater Outlet Hose Replacement (LUJ,
LUV Rear).
- Install the heater inlet hose to the heater core tube. Refer to Heater
Inlet Hose Replacement (LUJ,
LUV), Heater Inlet Hose Replacement (2H0).
- Fill the engine coolant system. Refer to Cooling System Draining
and Filling .
- Recharge the refrigerant system. Refer to Refrigerant Recovery and
Recharging (R-134a).
- Connect the negative battery cable. Refer to Battery Negative
Cable Disconnection and Connection .
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Fig. 49: Heater And Air Conditioning Evaporator And Blower Upper Case
Heater and Air Conditioning Evaporator and Blower Upper Case Replacement
HEATER AND AIR CONDITIONING EVAPORATOR AND BLOWER LOW
Removal Procedure
Drain the cooling system. Refer to Cooling System Draining and Filling .
Remove the air cleaner assembly. Refer to Air Cleaner Assembly
Replacement .
Fig. 58: Rear Hose, Hose
Fig. 67: Air Inlet Assembly
Air Inlet Assembly Replacement
BLOWER MOTOR CONTROL MODULE REPLACEMENT
Fig. 68: Blower Motor Control Module (With C67)
Blower Motor Control Module Replacement
AIR I
SEE MORE:
Fig. 17: Transmission Fluid Auxiliary Cooler
Transmission Fluid Auxiliary Cooler Replacement
TRANSMISSION FLUID COOLER PIPE CONNECTOR REPLACEMENT - RADIATOR
Removal Procedure
Drain the cooling system. Refer to Cooling System Draining and Filling
Remove the transmission oil cooler pipes from
The vehicle may have this feature
that allows you to start the engine
from outside the vehicle.
(Remote Vehicle Start): This
button will be on the RKE
transmitter if the vehicle has remote
start.
The climate control system will use
the previous settings during a
remote start. The rear defog may
co