Ford Mustang (1999-2004) Service Manual: Electronic Leak Detection

Special Tool(s)

H10PM Refrigerant Leak Detector With Battery 216-00001 or equivalent

CAUTION: Good ventilation is necessary in the area where electronic A/C leak testing is to be carried out. 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 anti-freeze, diesel fuel, disc brake cleaner, or other cleaning solvents can cause the same problem. A fan, even in a wellventilated area, is very helpful in removing small traces of contamination from the air that might affect the leak detector.

1. NOTE: The system pressure should be between 413-551 kPa (60-80 psi) at 24C (75F) with the engine off.

Leak test the refrigerant system using the Refrigerant Leak Detector. Follow the instructions included with the leak detector for handling and operation techniques.

Electronic Leak Detection

2. If a leak is found, discharge and recover the refrigerant. For additional information, refer to Air Conditioning (A/C) System Recovery, Evacuation and Charging in this section.

  • Repair the system.
  • Test the system for normal operation.

Electronic Leak Detection

    Manifold Gauge Set Connection
    Special Tool(s) R-134a Manifold Gauge Set 176-R032A or equivalent 1. Turn both valves on the R-134a Manifold Gauge Set clockwise to close the low- and highpressure hoses to the center ...

    Tracer Dye Leak Detection
    Special Tool(s) 120 Watt 110 Volt UV Lamp 20C 164-R0721 or equivalent NOTE: Ford Motor Company vehicles are produced with a permanent leak tracer dye incorporated into the A/C syste ...

    Other materials:

    Piston - Ring End Gap
    CAUTION: Use care when fitting piston rings to avoid possible damage to the piston ring or the cylinder bore. CAUTION: Piston rings should not be transferred from one piston to another. NOTE: Cylinder bore must be within specification for taper and out-of ...

    Pressure
    1. Clean all dirt from and remove the brake master cylinder filler cap and fill the brake master cylinder reservoir with the specified brake fluid. 2. NOTE: Master cylinder pressure bleeder adapter tools are available from various manufacturers of pres ...

    Dual-Function Pressure Switch (4.6L)
    The dual-function pressure switch is used to interrupt A/C compressor operation in the event of high system discharge pressures. The dual-function pressure switch is mounted on a Schrader valve-type fitting on the high pressure side of the A/C manifold ...