Ford Escape: Climate Control System — General Information / General Procedures

Inspection

1
NOTE
Depending on the refrigerant used:
- Use a Rotunda-approved electronic refrigerant leak detector certified to SAE J2791 for R-134a.
- Use a Rotunda-approved electronic refrigerant leak detector certified to SAE J2913 for R-1234yf refrigerant.
NOTE
Good ventilation is required in the area where the electronic leak test is performed. If the surrounding air is contaminated with refrigerant gas, the leak detector will indicate this gas all the time. Odors from other chemicals, such as antifreeze, brake parts cleaner or other cleaning solvents, can cause the same problem. Using a fan to ventilate the test area before starting the leak detection procedure helps remove small traces of contamination from the air, but the fan must be turned off during testing.
If the surrounding air is contaminated with refrigerant gas, the leak detector will continuously indicate this gas. Odors from other chemicals, such as antifreeze, brake cleaner or other cleaning solvents, can cause the same problem.
R-134a or R-1234yf, if present, is heavier than air and tends to move downward from the leak source. A leak may not be detected if the leak detector probe is held above a leaking fitting, line or component. Always make sure to check completely below, above and around the fitting, line or component for R-134a or R-1234yf.
Check the service ports for leaks. Remove the caps and blow air over the service ports to remove trapped refrigerant before leak testing the ports.
- For access to the appropriate Ford-approved refrigerant leak detector.
  Refer to: Climate Control Tools and Equipment (412-00 Climate Control System - General Information, General Procedures).
2
NOTE
System pressure must be 413-551 kPa (60-80 psi) at 24 °C with the engine off and cooled down. The pressure reading may be higher if the engine is hot.
Check the refrigerant system for leaks. Follow the handling instructions and operating techniques supplied with the electronic leak detector.

General Procedures — Electronic Leak Detection

Inspection

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