Diagnostic Aids
WARNING: This page is about a different car, the 2001 GMC Savana, 2001 Chevrolet RV Cutaway, 2001 Chevrolet Cutaway, and 2001 Chevrolet Chevy Express. However, it is still accessible from the selected car via links, so may be relevant.
- Use EVAP Pressure/Purge Diagnostic Station (J 41413) to pressurize EVAP system to aid in locating intermittent leaks.
- Move all EVAP components while testing with Ultrasonic Leak Detector (J 41416).
- A temporary blockage in EVAP canister purge valve, purge pipe or EVAP canister could cause an intermittent condition.