GM Storm/Spectrum 1985-1993 Repair Guide

Expansion Valve

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REMOVAL & INSTALLATION



Spectrum

For removal and installation of the expansion valve, refer to the procedures under EVAPORATOR CORE, in this section.

Storm
  1. Disconnect the negative battery cable and properly discharge the refrigerant system.
  2.  
  3. Remove the clamp attaching refrigerant pipes.
  4.  
  5. Remove the two nuts attaching refrigerant pipes to the expansion valve.
  6.  
  7. Remove the expansion valve retaining clip.
  8.  
  9. Remove the expansion valve.
  10.  

To install:
  1. Install the expansion valve and retaining clip.
  2.  
  3. Connect the refrigerant pipes to the expansion valve with the two retaining nuts and tighten them to 70 inch lbs. (8 Nm). Make sure to use new O-ring before installation.
  4.  
  5. Install the clamp attaching the refrigerant pipes.
  6.  
  7. Connect the negative battery cable.
  8.  
  9. Evacuate, charge and check the operation of the system.
  10.  

 
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