GM Firebird 1982-1992 Repair Guide

Evaporator Core

Print

REMOVAL & INSTALLATION



See Figures 1 and 2

  1. Properly discharge and recover the refrigerant using an approved recovery station. Refer to General Information & Maintenance for details regarding system service.
  2.  
  3. Remove the accumulator.
  4.  
  5. Remove the 2 screws and remove the high blower relay terminal
  6.  
  7. Remove the upper case screws.
  8.  
  9. On some engines it may be necessary to move the wiring harness out of the way and remove the dipstick.
  10.  
  11. Disconnect the bottom refrigerant line fitting.
  12.  
  13. Remove the upper case and lift the evaporator core out of the case (retain the foam wedge).
  14.  

To install:
  1. Add 3 fluid oz. (90 ml) of fresh 525 viscosity refrigerant oil if installing a new evaporator or if the oil in the evaporator has been drained.
  2.  
  3. Position the evaporator core into place with the foam wedge and install the upper case.
  4.  
  5. Use new O-rings lubricated with 525 viscosity oil.
  6.  
  7. Connect the bottom refrigerant line fitting.
  8.  
  9. Install the dipstick and position the wiring harness to the original place, if applicable.
  10.  
  11. Install the high blower relay terminal and secure it with the 2 screws.
  12.  
  13. Install the accumulator.
  14.  
  15. Evacuate and charge the system. Check for leaks.
  16.  



Click image to see an enlarged view

Fig. Fig. 1: A/C module assembly



Click image to see an enlarged view

Fig. Fig. 2: The upper section of the A/C case is removable for easier access to the evaporator core

 
label.common.footer.alt.autozoneLogo