Mazda RX-8 2004-06

Refrigerant Performance Test

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  1. Inspect the refrigerant pressure, as outlined in this section.
  2.  
  3. Place a dry-bulb thermometer in the driver-side center ventilator outlet.
  4.  
  5. Start the engine and after it is warmed up, run it at a constant 1,500 rpm.
  6.  
  7. Set the fan switch to 4th speed.
  8.  
  9. Turn the A/C switch on.
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  11. Set to RECIRCULATE mode.
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  13. Set the temperature control to MAX COLD.
  14.  
  15. Set to VENT mode.
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  17. Close all the doors and windows.
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  19. Wait until the air conditioner output temperature stabilizes. At a stabilized condition, the A/C compressor repeatedly turns on and off at regular intervals.
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  21. After the blower air is stabilized, read the dry-bulb thermometer.
  22.  
  23. Verify the ambient temperature.
  24.  
  25. Verify that the temperature reading is in the shaded zone.

    Click image to see an enlarged view

    Fig. A/C performance chart

  26.  

 
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