How to find an intake, exhaust or EVAP leak, reviewing the Vevor SD317 smoke leak detector

I use the Vevor vacuum leak tester with smoke testing mode while checking my 2006 S4 that recently had an engine out service that may have introduced pressure or vacuum air leaks into the intake or exhaust systems. When connected to the air intake on your engine, a leak detector's smoke can find leaks in the throttle body, PCV valve, intake manifold, vacuum lines, parts of the EVAP system, SAI hoses and even the rear main seal once the entire block is filled with smoke and pressure. It's also effective at finding exhaust leaks by pumping smoke into the tip of the exhaust pipes. Get yours with 5% off using code VEVT5 at checkout in your store: CA - https://s.vevor.com/bfRKtT US - https://s.vevor.com/bfRKt1 AU - https://s.vevor.com/bfRKud Other featured tools and materials: Smoke oil - https://geni.us/smoke-oil (Amazon) Chapters: 00:00 - Tool overview 04:11 - How to test the intake 07:24 - Testing the intake 10:58 - How to test the exhaust 13:12 - Testing the exhaust 14:44 - How the EVAP system works