Knowing how to test a car cooling system for leaks isn’t just for professionals—it’s a skill every diyer should have In this article, i’ll walk you through how to properly use a cooling system pressure tester to diagnose and fix cooling system leaks. Learn how to effectively pressure test your vehicle's coolant system to catch leaks early and avoid costly repairs Master trainer gary kimball demonstrates how to conduct a cooling system pressure test and gives insider tips on further steps that you may need to take if the pressure doesn’t reveal the. To do a radiator pressure test, you’ll need a radiator cap tester adapter, a hand held vacuum pump, and a pressure gauge First, make sure your engine is cool
Then, remove the radiator cap and screw on the radiator cap tester adapter Pump the vacuum pump until the pressure gauge reads about 15 psi If the pressure drops, then you have a leak. A pressure test on the coolant system is an essential diagnostic tool for identifying potential leaks and ensuring optimal engine performance
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