Chevrolet Trax Owners & Service Manuals

Chevrolet Trax: Heater and air conditioning evaporator and blower module removal and installation

Chevrolet Trax (2013-2022) Workshop Manual / HVAC & Restraints / Heating, Ventilation, and Air Conditioning / Repair instructions / Heater and air conditioning evaporator and blower module removal and installation

Removal Procedure

  1. Disconnect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Recover the refrigerant system. Refer to Refrigerant Recovery and Recharging (R-134a).
  3. Drain the engine coolant system. Refer to Cooling System Draining and Filling .
  4. Remove the heater inlet hose from the heater core tube. Refer to Heater Inlet Hose Replacement (LUJ, LUV), Heater Inlet Hose Replacement (2H0).
  5. 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).
  6. 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).
  7. Remove the right side floor rear air outlet duct. Refer to Floor Front Air Outlet Duct Replacement - Right Side.
  8. 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).
  9. Remove the instrument panel tie bar assembly. Refer to Instrument Panel Tie Bar Replacement .

Fig. 43: HVAC Module Assembly Drain Tube
Fig. 43: HVAC Module Assembly Drain Tube

  1. 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
Fig. 44: HVAC Module Assembly And Cowl Panel

  1. 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
Fig. 45: HVAC Module Assembly

  1. Remove the HVAC module assembly (1) from the vehicle.
  2. Transfer all necessary components.

Installation Procedure

Fig. 46: HVAC Module Assembly
Fig. 46: HVAC Module Assembly

  1. Position the HVAC module assembly (1) into the vehicle and temporarily support it.

Fig. 47: HVAC Module Assembly And Cowl Panel
Fig. 47: HVAC Module Assembly And Cowl Panel

CAUTION: Refer to Fastener Caution .

  1. 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
Fig. 48: HVAC Module Assembly Drain Tube

  1. Install the HVAC module assembly drain tube (1) to the HVAC module assembly.
  2. Install the instrument panel tie bar assembly. Refer to Instrument Panel Tie Bar Replacement .
  3. 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).
  4. Install the right side floor rear air outlet duct. Refer to Floor Front Air Outlet Duct Replacement - Right Side.
  5. 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).
  6. 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).
  7. Install the heater inlet hose to the heater core tube. Refer to Heater Inlet Hose Replacement (LUJ, LUV), Heater Inlet Hose Replacement (2H0).
  8. Fill the engine coolant system. Refer to Cooling System Draining and Filling .
  9. Recharge the refrigerant system. Refer to Refrigerant Recovery and Recharging (R-134a).
  10. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection .

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