Best Dorman Fuel Leak Detectors in 2026

Compatible with ALL Automotive Smoke Testers

Make leak testing with a smoke machine via larger openings a whole lot easier!

Premium Durable Quality. Automotive Grade.Simply fit the cone into diagnostic site and inject smoke to test for system leaks

【Why Need It】For example: 1. The rupture of the vacuum hose will cause the mixture to be too thick, the idle speed will increase, the hot car will not start well, the engine will surge during acceleration, the fuel consumption will increase significantly, and the exhaust pipe will emit black smoke. 2. Blocking will cause the idle speed to drift, and the idle speed is easy to stall. 3. Air leakage in the vacuum tube will cause the engine to run weakly

【EVAP Detection】American cars that began production in 1996 are equipped with EVAP service ports; in most American cars, the EVAP service port is usually located in the engine compartment, but the EVAP service port of some special models may be located in other locations. Open the plastic cover of the EVAP service port, then use the spool wrench to remove the check valve clockwise, then install the EVAP service port adapter, and introduce smoke from the port into the EVAP leak detection system.

【Wide Testing Range】Built-in air pump,The smoke leak detector can do smoke testing of multiple systems, such as EVAP systems, Intake Systems, Cooling / EGR /Exhaust Systems, Crankcase Systems, Engine Airtightness, Vacuum Leaks, Low Pressure Turbo leaks.Applicable cars, motorcycles, snowmobiles, off-road vehicles, ATVs, light trucks and speedboats boats.

【Why Need It】For example: 1. The rupture of the vacuum hose will cause the mixture to be too thick, the idle speed will increase, the hot car will not start well, the engine will surge during acceleration, the fuel consumption will increase significantly, and the exhaust pipe will emit black smoke. 2. Blocking will cause the idle speed to drift, and the idle speed is easy to stall. 3. Air leakage in the vacuum tube will cause the engine to run weakly

【Built-in Air Pump】Customers do not need to purchase additional air pumps, we use high-quality materials, after many tests, please rest assured to use. You can save more time and money

【EVAP Detection】American cars that began production in 1996 are equipped with EVAP service ports; in most American cars, the EVAP service port is usually located in the engine compartment, but the EVAP service port of some special models may be located in other locations. Open the plastic cover of the EVAP service port, then use the spool wrench to remove the check valve clockwise, then install the EVAP service port adapter, and introduce smoke from the port into the EVAP leak detection system.

【Excellent Quality】AUTOOL Easy Intake Adapter is made of high-quality silicone, with strong sealing, softness, high temperature resistance, good elasticity, and tear resistance.All Easy Intake Adapters have undergone multiple simulation tests，ensure can detect intake and exhaust leakage more quickly and accurately

【Fast and Convenient】AUTOOL Easy intake adapter is an inflatable block-shaped airbag with a pressurized steam channel, which is used for intake and exhaust smoke test. The wall thickness is 1.5mm and its diameter can be expanded to 121mm. It helps technicians to quickly and easily test the entire intake or exhaust system，Note: Please make sure the intake/exhaust diameter is bigger than 2".

【Humanized Design】Compared to traditional,AUTOOL Easy intake adapter with a steel ring removed at the end in order to use a smaller fitting.can be tested the intake/exhaust diameter is bigger than 2" more quickly and accurately leakage .

【Why Need It】For example: 1. The rupture of the vacuum hose will cause the mixture to be too thick, the idle speed will increase, the hot car will not start well, the engine will surge during acceleration, the fuel consumption will increase significantly, and the exhaust pipe will emit black smoke. 2. Blocking will cause the idle speed to drift, and the idle speed is easy to stall. 3. Air leakage in the vacuum tube will cause the engine to run weakly

【Wide Testing Range】The smoke leak detector can do smoke testing of multiple systems, such as EVAP systems, Intake Systems, Cooling / EGR /Exhaust Systems, Crankcase Systems, Engine Airtightness, Vacuum Leaks, Low Pressure Turbo leaks.Applicable cars, motorcycles, snowmobiles, off-road vehicles, ATVs, light trucks and speedboats boats.

【Built-in Air Pump】Customers do not need to purchase additional air pumps, we use high-quality materials, after many tests, please rest assured to use. You can save more time and money

🌹SDT-106 is designed for detecting the leakage of pipe systems on cars, motorcycles, such as fuel pipe, air intake system and cooling tank. SDT-106 is for all pipe systems Support EVAP.

🌹Hook: To hang the detector when detecting Working Indicator: It is lit when the detector works

🌹Power Switch: Power it on, and the detector works

NEW ARRIVAL -- Flow control adjustment can detect 0.25mm leak holes. Compact and lightweight design.Designed for detecting the leakage of pipe systems on cars, motorcycles, boats, such as fuel pipe, air intake system EVAP system and cooling tank.

WORKING PRINCIPLE -- The machine will change special oil(baby oil or mineral oil) into smoke, then blow smoke into sealed pipe system. You will find leak points in the pipe via the smoke. Please repair the part where leakage exists.

EVAP SYSTEM SUPPORTED -- Comes with EVAP adapters, updated SDT-206 can help you apply with EVAP System of all vehicles to quickly find out the leak parts. 4ft Smoke Outlet Pipe can help reach and connect perfectly. Adjustable 0-23PSI DO NOT harm to EVAP System.

【Why Need It】For example: 1. The rupture of the vacuum hose will cause the mixture to be too thick, the idle speed will increase, the hot car will not start well, the engine will surge during acceleration, the fuel consumption will increase significantly, and the exhaust pipe will emit black smoke. 2. Blocking will cause the idle speed to drift, and the idle speed is easy to stall. 3. Air leakage in the vacuum tube will cause the engine to run weakly

【No Air Pump】Connect shop air supply, connect 12V vehicle power, introduce shop air to the AUTOOL SDT103 fuel leak tester, turn the Flow Dial anti-clockwise to open the air flow, switch on the power at the back of the unit, then AUTOOL SDT101 smoke machine automotive will start to generate smoke.

【External Flow Meter】You can easily control the air pressure, because the air pressure of each pipe in the car is different. If the air pressure is too high, the pipe will be damaged, and if the air pressure is too low, the leak will not be detected. Therefore, the flow meter is very important to protect your detection system more effectively. Make testing safer