Operation CHARM: Car repair manuals for everyone.

Black Light and DYE Method

A Black Light Kit and Oil Dye or equivalent are available for finding leaks. Refer to the manufacturer's directions when using the kit.
1. Pour specified amount of dye into leaking component.
2. Operate the vehicle under normal operating conditions as directed in the kit.
3. Direct the light toward the suspected area. The dye fluid will appear as a yellow path leading to the source.