GM Full Size Vans 1967-1986 Repair Guide

Evaporative Core

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REMOVAL & INSTALLATION



  1. Disconnect the negative battery cable.
  2.  
  3. Purge the system of refrigerant.
  4.  
  5. Remove the coolant recovery tank and bracket.
  6.  
  7. Disconnect the electrical connectors from the core case assembly.
  8.  
  9. Remove the bracket at the evaporator case.
  10.  
  11. Remove the right marker lamp for access.
  12.  
  13. Disconnect the accumulator inlet and outlet lines, and the two brackets that attach the accumulator to the case.
  14.  
  15. Disconnect the evaporator inlet line.
  16.  
  17. Remove the three nuts and one screw that attaching the module to the dash panel.
  18.  
  19. Remove the core case assembly from the vehicle.
  20.  
  21. Remove the screws, separate the case sections and remove the evaporator core.
  22.  
  23. Installation is the reverse of the removal procedure.
  24.  

Add 3 ounces of 525 viscosity refrigerant oil to the condenser if a new one is installed.

 
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