2000 Subaru Outback Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Leak Testing: Inspection: Notes

WARNING: This page is about a different car, the 2001 Subaru Forester and 2000 Subaru Forester. However, it is still accessible from the selected car via links, so may be relevant.

The following points should be kept in mind when conducting a refrigerant leak test.

  1. The A/C system to be tested must have an adequate refrigerant charge to begin with.
  2. The area where the leak test is conducted must be free of wind and drafts, with still air being the ideal condition.
  3. The atmosphere where the leak test is conducted must be free of refrigerant contamination.
  4. Operate the A/C system for approx. 10 minutes, then turn the engine off and begin the leak test.
  5. Refrigerant gas is heavier than air, therefore always hold the probe below the connection being tested.
  6. When checking for a leak along a length of hose or tube, the leak detector probe must be moved slowly, approx. 25 mm (1 in) per second making sure probe does not come in contact with the component being tested.
  7. When checking for a leak at a certain point, the leak detector probe must be held at that point for at least 5 seconds.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.