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Home >> Ford >> 2002 >> Crown Victoria Base, 4.6 9 >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> General Servicing >> HVAC Systems - General Servicing >> Leak Testing >> Types Of Leak Detectors >> Fluorescent Leak Detection

Fluorescent Leak Detection

NOTE: All 2002 model year GM passenger vehicles have a fluorescent leak detection tracer dye added to the A/C system. An underhood A/C charge label (when available) will have CONTAINS REFRIGERANT DYE on the label. Not all vehicles with the dye will have the new A/C charge label.
NOTE: Ford Motor Co. vehicles with A/C system fluorescent leak detection tracer dye will have a Green "X" on the accumulator.

One of the most effective ways to detect a leak in an A/C system is with fluorescent leak detention tracer dye. If fluorescent dye has been added during vehicle production, additional refrigerant dye for leak detection is not required. Dye added to A/C system during production will remain unless removed during a flushing process. Dye mixes with refrigerant oil, not refrigerant. On Ford vehicles, dye is visible using a 120 watt UV spot light. On GM vehicles, dye is visible using Yellow glasses and a High Intensity Black Light (J28428-E).