LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Ford >> 2002 >> Excursion 2WD V10-6.8L >> Repair and Diagnosis >> Maintenance >> Fluids >> Refrigerant >> Testing and Inspection >> Fluorescent Dye Leak Detection
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Fluorescent Dye Leak Detection

120 Watt 110 Volt UV Lamp 20 Degree Celsius:






SPECIAL TOOL(S)

NOTE: Ford Motor Company vehicles are produced with a permanent leak tracer dye incorporated into the A/C system. The location of leaks can be pinpointed by the bright yellow-green glow of the tracer dye. Since more than one leak can exist, always inspect each component.







1. Check for leaks using a 120 Watt UV spot lamp.
^ Scan all components, fittings and lines of the A/C system.

2. After the leak is repaired, remove any traces of tracer dye with a general purpose oil solvent.







3. Verify the repair by operating the system for a short time and inspect with the UV spot lamp.