From trouble accelerating to reduced gas mileage, a vacuum leak can cause a host of engine problems. Performing a vacuum leak test using an oscilloscope can help pinpoint the source of the problem. Follow along as Master Trainer Mark Kenyon of Garage Gurus demonstrates how to set up an oscilloscope to perform a vacuum leak test. With the scope and a vacuum transducer hooked up, Mark shows how to navigate to the proper menus and execute the test. He then shows a waveform pattern that is generated. Count on Garage Gurus to help you get your vehicle repair done right.

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The content in this video is for informational purposes only. You should consult with a certified technician or mechanic if you have questions relating to any of the topics covered herein. Tenneco will not be liable for any loss or damage caused by your reliance on any content.