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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1380 (Heating, Ventilation And Air Conditioning) >> Diagnostic Information and Procedures >> Leak Testing >> Refrigerant Leak Testing

Refrigerant Leak Testing

WARNING: This page is about a different car, the 2004 Pontiac Vibe. However, it is still accessible from the selected car via links, so may be relevant.

Tools Required

IMPORTANT: The preferred method of leak testing is with the use of fluorescent dye. J 41447  is the only fluorescent dye approved by General Motors. See Special Tools and Equipment .

The fluorescent dye mixes and flows with the PAG oil throughout the refrigerant system.