GM: Electra/Park Avenue/Ninety-Eight 1990-1993

Heater Core

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Fig. Fig. 1 Heater hoses to heater core

REMOVAL & INSTALLATION



  1. Review the list under Useful Notes, above. Refer to the Air Bag section at the beginning of this Section, and disarm the Air Bag system.
  2.  
  3. Disconnect the negative battery cable.
  4.  
  5. Disconnect the heater hoses from the heater core.
  6.  
  7. If equipped with electronic climate control, perform the following procedures:
  8.  
    1. Disconnect the wires and the hose from the programmer.
    2.  
    3. Remove the programmer linkage cover and linkage.
    4.  
    5. Remove the programmer mounting bolts and the programmer.
    6.  

  9. Remove the heater core cover and heater core assembly.
  10.  

To install:

  1. Install the heater core assembly and heater core cover.
  2.  
  3. If equipped with electronic climate control, perform the following:
  4.  
    1. Install the programmer mounting bolts and the programmer.
    2.  
    3. Install the programmer linkage and linkage cover.
    4.  
    5. Connect the wires and the hose to the programmer.
    6.  

  5. Connect the heater hoses to the heater core.
  6.  
  7. Connect the negative battery cable.
  8.  
  9. Fill the cooling system. Start the engine and allow to come to normal operating temperature and check for leaks. Check coolant level after the engine has cooled down.
  10.  
  11. Check the climate control system for proper operation.
  12.  
  13. Refer to the Air Bag section at the beginning of this Section, and arm the Air Bag system.
  14.  

 
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