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

Pressure Cycling Switch

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REMOVAL & INSTALLATION



Do not discharge the system. The pressure cycling switch is mounted on a Schrader-type valve.

  1. Disconnect the negative battery cable.
  2.  
  3. Disconnect the electrical connector.
  4.  
  5. Remove the switch.
  6.  
  7. Installation is the reverse of removal. Install a new O-ring dipped in refrigerant oil. Torque switch to 7 1 / 2 ft. lbs. (10 Nm).
  8.  

 
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