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My check engine light still has not come back on since replacing Fuel Vapor Separator Tube (KB3Z-9D289-B), Vapor Vent Solenoid (9U5Z-9F945-C), and Fuel Vapor Tube (KB3Z-9K318-A). And these were replaced under the emissions warranty. Unfortunately this code could be a variety of things in the...

No the notification was not right after a fill up.

Originally when it was just the check purge valve they said it was not covered under the emissions warranty.

Got the truck back yesterday and the tech replaced the following: Fuel Vapor Separator Tube (KB3Z-9D289-B) Vapor Vent Solenoid (9U5Z-9F945-C) Fuel Vapor Tube (KB3Z-9K318-A) We will see if this fixes the issue and if the CEL stays off. At least they covered it under warranty (even though I'm...

Thanks. I’ll bring that up to them. I haven’t done any anti-rust treatments so we will see if they can fix the problem.

Thanks for the input, I really appreciate it. We will see if the tech can solve the issue and now I can speak a little more knowledgeably on the topic.

Anyone else have their check engine light and check fuel fill inlet notification pop up with diagnostic trouble code P04F0? Ford tech has replaced vapor canister purge valve and vapor canister vent solenoid but this has not solved the issue. He ran a smoke test and can't find any obvious leaks...

Benny, I'm wondering if I could also get a code for the Fox Suspension Kit 2.0?