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2011 Chevrolet Cruze 1.4L Turbo - P0496 Code: EVAP System Flow During Non-Purge Diagnosis

Model: Chevy Cruze Fault Code: P0496 Posted: 2014-09-20 15:17

The check engine light is on and the diagnostic code displayed is P0496, indicating an issue with the Evaporative Emission (EVAP) system flow during non-purge conditions. I recently replaced the gas cap with a factory-original one, but the code persists. The EVAP system is involved, so I'm looking for guidance on locating and identifying the purge valve or check valve. Does anyone have a diagram of the purge valve location or a description of what it looks like? Any advice on troubleshooting this issue would be greatly appreciated. Thanks, John.

Related fault codes

P0496

Comments (4)

Anonymous 2014-09-20 16:18

I'll provide more details when I can — the gas cap is not the root cause. Code P0496 specifically refers to 'System Flow During Non-Purge,' and the purge valve is the primary component to inspect. However, I recommend reviewing your vehicle's warranty, as a 2011 Chevrolet Cruze typically comes with a 5-year/100,000-mile coverage for the powertrain control module (PCM), though catalytic converter coverage is only 3 years and expired about a month ago.

Anonymous 2014-09-22 22:20

The warranty covers up to 5 years on the PCM and catalytic converter, but that expired approximately one month ago. I’ve refused to take it to the dealer due to high repair costs. I joined the Cruze Talk forum for help, but haven’t received any useful responses there.

Anonymous 2014-09-23 14:47

The purge valve and check valve are located near the intake manifold, just behind the throttle body — a tube runs from the throttle body to these components. I'm sorry I can't include an image; I’m not very experienced with vehicle diagnostics or photo sharing.

Anonymous 2014-10-20 18:29

I replaced both the purge valve and check valve myself. The process was straightforward — all you need is a small flat-head screwdriver to remove the red retainer clip that holds the components in place. I disconnected the positive battery terminal for about 10 minutes before reconnecting, after which the check engine light turned off. I ordered the parts from Amazon for $30; dealers charge around $61. The entire job took under five minutes. If you're not mechanically inclined, I wouldn’t recommend attempting this. Be careful — if you break the red retainer clip, you’ll have to replace it yourself since the new part doesn't include one. It securely holds all components together during operation. Good luck with your repair!