Lisle 75500 Combustion Leak Detector
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<b>[Product Information]</b><br>
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<li>Checks for combustion leaks caused by bad head gaskets, cracked blocks, and cracked or warped heads</li>
<li>Fluid changes from blue to yellow when exposed to combustion gases from the radiator</li>
<li>With the engine running, the vehicle vacuum or the vacuum pump draws vapors through the indicating fluid for testing</li>
<li>With the engine running, the vehicle vacuum or the vacuum pump draws vapors through the indicating fluid for testing</li>
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