ANCEL S3000-US Automotive Smoke Machine EVAP Leak Tester

The ANCEL S3000-US is a 12-volt smoke machine that fills a sealed system with dense, low-pressure smoke so a leak shows itself instead of being guessed at. It covers EVAP, intake, vacuum, turbo and boost piping, exhaust, fuel tank and crankcase circuits. Clip the leads to the battery, plug the correct adapter into the system you are testing, and watch where the smoke walks out. Cracked vacuum lines, a split intake boot, a leaking throttle body gasket, a bad gas cap seal or a dry-rotted purge line all give themselves up in a minute or two.

It runs two modes. Air Mode pushes clean air with no smoke fluid burned, which is how you do a pressure decay check: charge the system, close the valve, and see whether the gauge holds. If it bleeds down, you switch to Smoke Mode and hunt the exact spot. That check-then-locate order saves fluid and tells you up front whether there is actually a leak worth chasing. The built-in air pump means no shop compressor and no air hose dragged across the bay, so it also works on a customer's car in the lot, on an ATV, on a motorcycle, or on a boat.

The adjustable flow meter matters more than people expect. Small vacuum lines and EVAP circuits want a low, slow flow so the smoke lingers and is visible; a large intake or exhaust volume needs more flow or you will never fill it. The gauge on the front lets you watch pressure and confirm the system is holding. Smoke output stays low pressure, so it will not push past a good seal or damage the EVAP system, and it draws from the vehicle battery rather than an internal cell that dies halfway through a job.

Model S3000-US, manufacturer part number S2000. The unit measures 7.28 x 5.12 x 3.35 inches and weighs 4.93 pounds, so it lives on a shelf and not on a cart. Ships from the USA; in-stock items ship same day.