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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 122 (Engine Controls And Fuel - 2.7L (L3B) - Diagnostic Information And Procedures (3 Of 3)) >> Diagnostic Information and Procedures >> Fuel Leak Diagnosis >> Diagnostic Aids

Diagnostic Aids

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Fluorescent dye assists in locating leaks in the system. A high-intensity black light will make the dye glow: Green or Yellow

Illuminate the area (s) of concern

For example:

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