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In this video, Professor Raúl explains how to distinguish when the engine we are checking has a compression leak due to valves (exhaust or intake). We hope you liked our video, give it a Like and share it with someone you think might find useful, SUBSCRIBE and activate the bell so you are aware of our new videos. You can see more of us on our other social networks FB: / centrotapatiodeespecialidades IG: https://www.instagram.com/scuelademec...