TRiGGeR605

Hey guys,

I was driving down the highway today and heard a buzzing noise coming from the engine bay that would sound for 4-5 seconds and then turn off. It sounds kind of like a fuel pump would but louder. It would come and go, for about a total of 7 times during the 3 1/2 hour drive.

I've never heard this noise until the recent bitter cold we've been experiencing. Today it was -5 degrees all day with a 5 mph wind. I wonder if that has something to do with it. Plus my mileage was only 16.5 driving 73 mph. I assume the cold is to blame for that, I normally get 19 to 21 hwy.

rockwood

Any snow etc? Wonder of something was icing up.

harpo302

I get the same noise. (Buzzing/Humming) Usually on a cold morning backing out of my driveway. It sort of sounds like the older blend door actuators. It starts when I put it in reverse with my foot on the brake and lasts for 4-5 seconds. Next time I bring it in for an oil change I'll bring it up to the service dept.

CoreyMS

Vacuum pump. Its electric. I believe on 2013 it is now ran on the cam. This is on the eco.

Coord

Mine has done this a couple of times in the cold, highway speeds, once with cruise on, once with cruise off, tach and boost gauge showed no changed but a noise came from under the hood that sounded like a cross between a "Jake Brake" and center line rumble strips, lasted about 5 seconds at most. My sons stock 2012 has done this also.....

Roughneck12

Hmmmm. I first heard that noise the other day. Sounded like a rumble strip. I would back out, minor change in rpm and it would go away. It was minus thirty. Thought it was my new exhaust system.

Do you really think its a vacumn pump?

Jpmogdan

My 2012 Ecoboost does the same thing sounds like a jake brake. Has any one found out what it is .

BLUE ROCKET

I was driving approximately 750km (470miles) home to my parents at Christmas time and I noticed the same thing in my truck 4-5 times. My average speed was 115km/h (72mph) and it was chilly out -25°C (-13°F). I never noticed it driving back -10°C (14°F). I have only driven on the highway at this cold temperature the one time at Christmas.

Centexguy

Who in this thread has a catless y-pipe?

smkt321

I have read the posts on this and it sounds like a fairly common problem. I am unclear on the fix and if Ford contributes to these posts to recommend how to fix?? Thank you