Procedure: Leak Detected (All Models)
- The shut-off valve must still be activated.
- Detach the line from the purge valve on the intake manifold.
- Pressurize the system further as described in the Kent-Moore instruction manual.
- Detect the leak with the Ultrasonic Leak Detector (J41416). Start from the line detached from the intake manifold and work through the lines and components in the system. Perform a visual inspection at the same time.
- Adjust the sensitivity of the detector to filter out ambient, in many cases, interfering noise.
- When the leak has been detected and rectified, check the integrity of the system again.
- Restore the car to its original state.
NOTE:
It may be necessary to lower the tank slightly to be able to check for possible leaks in the components on top of the tank.
NOTE:
The ultrasonic leak detector is sensitive to ambient noise such as exhaust extractors, air compressors, air nozzles, leaking air connections, etc. The workshop ventilation system can create currents of air that can also affect the equipment. Everything mentioned above can cause similar, but incorrect, result/detection as a leaking EVAP system.
NOTE:
Major leaks such as a defective shut-off valve or loose hose are difficult to detect as they do not have the "right sound" to be detected by the ultrasonic leak detector. Therefore, it is important to perform a visual inspection and component check of the system if there is a very quiet leak.