- Tools & Garage Gear
- Automotive Tools
- Lisle Combustion Leak Detector
Lisle's Combustion Leak Detector quickly pinpoints combustion leaks caused by bad head gaskets, cracked blocks, and cracked or warped heads. This leak detector connects to any vacuum line on the vehicle, while the tapered end fits into radiator opening. With the engine running, fluid changes from blue to yellow when exposed to combustion gases from the radiator.