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System Low

WARNING: This page is about a different car, the 2004 Dodge Dakota. However, it is still accessible from the selected car via links, so may be relevant.
  1. Determine if there is any (R-134a) refrigerant in the system.
  2. Position the vehicle in a wind free work area. This will aid in detecting small leaks.
  3. Bring the refrigerant system up to operating temperature and pressure. This is done by allowing the engine to run for five minutes with the system set to the following:
    • Transmission in Park or Neutral with parking brake set
    • Engine idling at 700 rpm
    • A/C controls set in 100 percent outside air
    • Blower switch in the high A/C position
    • A/C in the ON position
    • Open all windows
    CAUTION: A leak detector designed for R-12 refrigerant (only) will not detect leaks in a R-134a; refrigerant system.
  4. Shut off the vehicle and wait 2 to 1 minutes. Then use an Electronic Leak Detector that is designed to detect R-134a type refrigerant and search for leaks. Fittings, lines, or components that appear to be oily usually indicates a refrigerant leak. To inspect the evaporator core for leaks, insert the leak detector probe into the drain tube opening or a heat duct. A R-134a dye is available to aid in leak detection, use only DaimlerChrysler approved refrigerant dye.
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