GM Buick/Oldsmobile/Pontiac/Full-Size 1975-1990 Repair Guide

Accumulator

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REMOVAL & INSTALLATION



See Figure 1

  1. Discharge the system as described in Routine Maintenance .
  2.  
  3. Disconnect the electrical connection at the pressure cycling switch and remove the switch.
  4.  
  5. Disconnect the refrigerant lines at the accumulator inlet and outlet.
  6.  
  7. Remove the bracket screw and remove the accumulator from the vehicle.
  8.  
  9. Immediately cap the refrigerant lines.
  10.  

To install:
  1. Check the amount of oil in the accumulator and add that amount of fresh 525 refrigerant oil plus 2 fluid ounces (60 ml).
  2.  
  3. Install the new accumulator. Use new O-ring seals and lubricate with refrigerant oil.
  4.  
  5. Evacuate and recharge the system using the procedures in Routine Maintenance .
  6.  



Click image to see an enlarged view

Fig. Fig. 1: Cross-section of an accumulator

 
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