AutoZone 1993 Acura Legend 3.2L FI 6cyl | Repair Guides | Heating & Air Conditioning | Heating & Air Conditioning System Components | Temperature Control Actuator | AutoZone.com

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    1993 Acura Legend 3.2L FI 6cyl

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    Temperature Control Actuator

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    Removal & Installation



    1. Recover the refrigerant with a recovery/recycling/charging station.
    2.  
    3. When the engine is cool, drain the engine coolant from the radiator.
    4.  
    5. Disconnect the negative cable from the battery.
    6.  
    7. Remove the bolts (A) and the expansion valve (B) from the evaporator core. Plug or cap the lines immediately after disconnecting them to avoid moisture and dust contamination.

      Click image to see an enlarged view

      Fig. Removing the evaporator core

    8.  
    9. Disconnect the inlet (C) and outlet (D) heater hoses from the heater unit. Engine coolant will run out when the hoses are disconnected ; drain it into a clean drip pan. Be sure not to let coolant spill on electrical parts or painted surfaces. If any coolant spills, rinse it off immediately.
    10.  
    11. Remove the crash pad.
    12.  
    13. Remove the cross member.
    14.  
    15. Remove the mounting nut (A), the mounting bolts (B) and heater and evaporator unit (C).

      Click image to see an enlarged view

      Fig. Heater and evaporator unit

    16.  
    17. Remove the side bracket (C).
    18.  
    19. Remove the clip and lower cover. Be careful not to bend the inlet and outlet pipes during heater core and evaporator core removal.

      Click image to see an enlarged view

      Fig. Side bracket removal

    20.  
    21. Disconnect the 7P connector (A) from the temperature actuator (C). Remove the self-tapping screws (B) and the temperature actuator (C) from the heater unit.

      Click image to see an enlarged view

      Fig. Removing temperature actuator

    22.  
    23. Installation is the reverse order of removal, and note these items:

      Make sure temperature actuator runs smoothly.
       
      If you're installing a new evaporator, add refrigerant oil.
       
      Replace the O-rings with new ones at each fitting, and apply a thin coat of refrigerant oil before installing them. Be sure to use the right O-rings for R-134a to avoid leakage.
       
      Immediately after using the oil, replace the cap on the container, and seal it to avoid moisture absorption.
       
      Do not spill the refrigerant oil on the vehicle ; it may damage the paint ; if the refrigerant oil contacts the paint, wash it off immediately.
       
      Apply sealant to the grommets.
       
      Make sure that there is no air leakage.
       
      Charge the system (see page HA-24), and test its performance.
       
      Do not interchange the inlet and outlet heater hoses and install the hose clamps securely.
       
      Refill the cooling system with engine coolant.
       

    24.  

     
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