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To check the purge valve on a 2005 Chevy Cobalt, first, locate the valve, which is usually found on the engine's intake manifold or near the charcoal canister. Disconnect the electrical connector and the vacuum lines attached to the valve. Use a multimeter to test for continuity, and apply 12 volts to the valve to see if it clicks or opens, indicating it's functioning. Also, inspect for any signs of cracks or leaks in the valve itself.

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2mo ago

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