In this video, I explain how to find a vacuum leak in a car, which can be a frustrating task. I demonstrate how to create a smoke test machine for detecting vacuum leaks or boost leaks. Using a smoke ...

We may receive a commission on purchases made from links. A vacuum leak in a car occurs when there's an unintended opening in the vacuum system, which allows air to enter the engine. This disrupts the ...

If you've ever spent an afternoon hunting a tiny EVAP leak or tracing a phantom electrical short, you know the frustration of modern vehicle diagnostics. But as of May 2026, the landscape has shifted ...