JScullin Posted May 28, 2013 Share Posted May 28, 2013 Posted this a couple weeks back on another forum and got no response. Car was a week old and I gave it a wash after getting home from work. Noticed it making this noise and can't say I've heard it since. I'll have had the car one month at the end of this week. http://youtu.be/Toi_v9YL9yw Quote Link to comment Share on other sites More sharing options...
Guest RRF985 Posted May 28, 2013 Share Posted May 28, 2013 My car does it too. I'm not too worried about it. Quote Link to comment Share on other sites More sharing options...
bluspikez Posted May 28, 2013 Share Posted May 28, 2013 My car makes the same noise too, and I've wondered what it is. I don't have a definitive answer, but here's my theory... The turbos for the EcoBoost motors are oil and water cooled, and obviously the mechanically driven cooling won't be happening after you turn the engine off (off go the oil and water pumps). Water cooling will continue, though, via thermal siphon (mentioned in this Ford article), so my guess is that this sound is some sort of valve or diverter in the coolant plumbing that's adjusting flow as things cool down. I only ever hear it after driving it for a while and then parking it, and it will happen intermittently as things cool down, so it seems like a logical guess. Quote Link to comment Share on other sites More sharing options...
Guest RRF985 Posted May 28, 2013 Share Posted May 28, 2013 That's a good article. I wondered if the car had some sort of after-run system to cool the turbo when the car is shut off. I'm still used to having an only oil-cooled turbo on my 6.0L I used to having and letting it idle for a while before shutting it off. Quote Link to comment Share on other sites More sharing options...
kyleon17 Posted August 4, 2013 Share Posted August 4, 2013 Earlier this week my 13' started making a weird humming noise. I've attached a recording through my Dropbox account here: https://dl.dropboxusercontent.com/u/11175964/FF%2013%20Noise.m4a You can hear it happen twice in the first 10 sec. I'm not even sure what to call this kind of noise! :/ I placed the phone on the driver side dashboard where I believe the noise is coming from. This happened last Tuesday(30th) and Thursday(1st) morning going to work and coming home from work. It seems to start about 15-20 min into my drive. I was not running the AC on either occurrence. Any idea what this could be? Should I take it to my dealer? Quote Link to comment Share on other sites More sharing options...
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