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danielswift5

Freestyle fuel tank ventilation leak

I'm having trouble with my 2005 Ford Freestyle with a gasoline engine. The check engine light is on, and it sometimes stalls when idling. I've checked the fuel cap and looked for leaks, but could this be the fuel tank ventilation system?

Summary of the thread

A 2005 Ford Freestyle is experiencing issues with the check engine light being on and occasional stalling when idling. The problem is suspected to be related to the fuel tank ventilation system. Possible causes include a leak in the system or a faulty purge valve. A smoke test at a workshop confirmed a leak due to a bad activated charcoal filter, which was subsequently repaired.

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4 comment(s)

paul_schwarz1

It could be related to the fuel tank ventilation system. The symptoms match a potential leak. Have you smelled any fuel, especially after filling up? Is the check engine light always on, or does it come and go? A bad purge valve could also cause this. Has that been checked?

danielswift5 (community.author)

Thanks, I'll check for fuel odors next time I fill up. The check engine light has been on constantly. I haven't checked the purge valve. Can I check that myself, or should I take it to a professional?

paul_schwarz1

Since the check engine light is always on and you haven't smelled fuel, the issue might be the activated charcoal filter. You can test the purge valve, but it needs special tools. Given the age and mileage, I'd suggest a workshop. They can do a smoke test to find the leak in the fuel tank ventilation system.

danielswift5 (community.author)

Thanks for the advice. The workshop did a smoke test and found a leak in the fuel tank ventilation system, caused by a bad activated charcoal filter. The repair cost 275€. Thanks for pointing me in the right direction!

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FORD

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FREESTYLE