EcoBoost whistle and hoot sound - Ford F150 Forum - Community of Ford Truck Fans

Engine / Drivetrain Talk 6 or 8 Cylinders? Come talk about it.

EcoBoost whistle and hoot sound

Thread Tools Search this Thread
Old 07-05-2012, 01:36 AM   #1
Thread Starter
AwfAxis's Avatar
Join Date: Jul 2012
Location: Truckee, CA
Posts: 33
Thanked 1 Time in 1 Post
Default EcoBoost whistle and hoot sound

New to this forum. Took delivery of an MY12 F150 FX4 EB S-CREW 3 weeks ago, and put on the obligatory 1000 miles before putting it into towing service.

Have a travel trailer which is about 5k loaded, and took it to Yosemite last week. On the uphill grades, whenever letting OFF of the accelerator, I would hear a owl hoot sound. Don't notice this so much when there is no load, but I am attributing this to the turbo releasing pressure.

This is just a guess however. I can hear it if the radio is off, but otherwise, it is not overly loud.

Is this normal, or is there some issue that requires a dealer visit?

Thanks for any info.

EcoBoost whistle and hoot sound-newrig.jpg
AwfAxis is offline   Reply With Quote
Old 07-05-2012, 03:23 AM   #2
Senior Member
zitterich246's Avatar
Join Date: Jun 2008
Location: NW Iowa
Posts: 905
Thanked 38 Times in 33 Posts

blow off valve
zitterich246 is offline   Reply With Quote
The Following User Says Thank You to zitterich246 For This Useful Post:
AwfAxis (07-05-2012)
Old 07-07-2012, 01:43 PM   #3
Senior Member
Join Date: Jun 2012
Location: MD
Posts: 160
Thanked 12 Times in 9 Posts

totally normal. it is the the bypass valve venting excess pressure.
FoX2012 is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Chirp/sqeal With No Drive Belt I'dRatherBfishing General F150 Discussion 9 12-02-2017 02:25 PM
2015 2.7L Ecoboost Issue? Jdcanter13 6 Cylinder Engines 52 10-31-2017 09:16 AM
Do the '15 3.5 EB's have the intake "silencer" from prev gen? alping45 2015 - Present Ford F150 15 02-27-2016 03:47 PM
Full audio upgrade (minus head unit), what did you pay? txmedic90 Stereo/Audio 16 10-06-2015 03:56 PM
Platinum 5.0 oil color and level Takeda 2015 - Present Ford F150 17 09-05-2015 11:20 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

All times are GMT -4. The time now is 09:53 AM.

Copyright 2006 - 2017 We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.
  • Ask a Question
    Get answers from community experts
Question Title:
Your question will be posted in: