Combustion Leak Detector

The Lisle Combustion Leak Detector (75500) is an essential tool for accurately diagnosing combustion leaks within vehicle engines. This device effectively pinpoints problems caused by issues such as blown head gaskets, cracked engine blocks, or warped cylinder heads. Its operation relies on a sensitive indicator fluid that visually signals the presence of combustion gases by changing color from blue to yellow upon exposure. To use the detector, connect the hose to a vehicle's vacuum line or utilize the included adapter with a hand vacuum pump. The tapered end of the tool is then inserted into the radiator opening. With the engine running, the vacuum generated by the vehicle or the pump draws engine vapors through the indicating fluid. A color change to yellow confirms a combustion leak, enabling prompt and precise repairs. Its portable design makes it easy to transport and store, while the straightforward operation and clear instructions ensure user-friendliness. This versatile tool is suitable for a wide range of gasoline and diesel engines, offering peace of mind and helping to prevent costly engine damage through early detection.