How much does a smoke test cost for a car?. You can then visually inspect the entire evap system and watch for where the smoke is coming out. What is an evap smoke machine?. Great for detecting leaks from throttle shafts, engine blocks, turbo test systems, crankcase systems, air intake systems, exhaust systems, fuel tank systems, EVAP systems, EGR systems, cooling systems, and various piping in a wide range of vehicles.
