How To Test If Purge Valve is Stuck Open (No Tools Needed and Without Removing It)

How to test the purge valve to see if it is stuck open with no tools and without removing it.
How To test if the Purge Valve is Opening and Closing Video:    • How To Test Evap Purge Valve is Good ...  
To test it first unplug it and remove the hose going to the charcoal canister and checking for a vacuum. If a vacuum is felt, then the purge valve is stuck open; if no vacuum is felt, then it is closed. Since it is unplugged, the computer can't send it a signal to open, so it should be closed. The vacuum will be the intake manifold vacuum, which will be a small pull when felt with a finger. This should work on any vehicle and any purge valve. No tools are needed, and it will not need to be removed.

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