Diagnostic Aids
WARNING: This page is about a different car, the 2002 Pontiac Firebird and 2002 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
To aid in locating an intermittent leak, use the EVAP Pressure/Purge Diagnostic Station (J 41413) to pressurize the EVAP system. Move all EVAP system components while testing with the Ultrasonic Leak Detector (J 41416).