"check fuel cap" warning light
 

My "check fuel cap" warning light just came on today, it's in and seems to be functioning correctly. any ideas of what i can check to see if anything needs fixing?

Re: "check fuel cap" warning light
 

put a new gas cap on last night, no result.

Re: "check fuel cap" warning light
 

Yeah Mine did it today on the highway, I got out and checked it, it was in and I screwed it in and out a few times. I finished driving to my friends house and turned off the engine and worked on it some more, but I couldn't fix it. When I got home I did some more work and I found out that this little piece of metal that goes down and shuts off the sensor had broken off because it was worn out after the cap had been screwed in so much. So my advice is to try to live with it, because it will be really expensive to fix.

Re: "check fuel cap" warning light
 

Been there done that! Your gonna have to go to your ford dealer and have them reset the computer! it may sound like a "big deal" but it only takes them about 5 minutes. what happened is that your cap didn't seat when you put it back-on, and it sucked-in air...the computer sensed it and now your "check fuel cap" light comes-on. Just take it in, your warranty covers it!

Re: "check fuel cap" warning light
 

Thanks for the replies.

Took it to a dealer and they reset the computer, it came back on a week later, took it back and they found that the charcoal solenoid that effects emissions control was damaged, it was located directly behind the left rear bumper benind that tire. cost $220 to fix it but the warning light has stayed off for 3 weeks now. not happy about the price but happy my car is happy.

Re: "check fuel cap" warning light
 

Yeah mine is that same solenoid, and the vapor management valve, but the price tag on mine was $500, so we are going to fix it ourselves, the dealership said it didn't really effect anything but gas mileage.