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Diagnostic Aids

WARNING: This page is about a different car, the 2003 Pontiac Montana, 2003 Oldsmobile Silhouette, and 2003 Chevrolet Venture. However, it is still accessible from the selected car via links, so may be relevant.

The EVAP system tests run when the engine is first started and meets the Conditions for Running DTC. See CONDITIONS FOR RUNNING DTC . To aid in locating intermittent leaks, use the EVAP Pressure and Purge Station (J-41413) to pressurize the EVAP system. Move all EVAP components while testing with the Ultrasonic Leak Detector (J-41416).

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