This test could be used to verify a bad head gasket, cracked cylinder head, or cracked engine. Pull the three segments apart using a firm, twisting motion Fill each of the two chambers up to the fill line (1/2 oz.) with fresh blue leak tester fluid and reassemble, while keeping the hole in the rubber intake end plugged with a finger The fluid is not hazardous With the engine idling, squeeze and release the bulb for one minute to draw radiator gases through the test fluid. Open the hood of your car and locate the radiator cap
Remove the radiator cap and attach the combustion leak tester to the opening Fill the tester with the blue liquid provided in the kit Start the engine and let it run for a few minutes Observe the color of the liquid in the tester. Let me walk you through the entire process of using the maddox combustion leak detector to test your vehicle Start with a cool engine and remove the radiator or expansion tank cap.
