high pitched whissel sound at idle - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 08-03-2012, 07:40 PM
Powerstroke.org Rookie
 

Join Date: Mar 2012
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
high pitched whissel sound at idle

i have a very high pitched whissel sound at idle coming from under the hood, just started the other day but it is getting worse.it goes away as soon as i rev the engine up. its coming from underneath the hood i have tried to listen all over with a stethascope but just cant seem to pin point it. any help would be must appreciated, as it is driving me crazy haha. thx
ps the truck has 4" turbo back exhaust, a egr delete kit and studs.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 08-03-2012, 07:44 PM
Powerstroke.org Sponsor
 

Join Date: Feb 2011
Location: Dallas, GA
Posts: 5,766
Thanks: 79
Thanked 133 Times in 89 Posts
Feedback Score: 0 reviews
Pin hole starting in your up pipe bellows.
Reply With Quote Quick reply to this message
  #3  
Old 08-03-2012, 07:45 PM
Compression Ignition Addict
 

Join Date: Sep 2010
Location: Sarasota, FL
Posts: 248
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
A buddy of mine has one that did this and we ended up finding that the small rubber hose (I think its about 3/8 in size) going into the intake on the passenger side had ripped and was causing the high pitched whistle. It's about midway back on the top of the intake. Not sure if its your problem but worth a look.
Reply With Quote Quick reply to this message
  #4  
Old 08-03-2012, 07:52 PM
Powerstroke.org Sponsor
 

Join Date: Feb 2011
Location: Dallas, GA
Posts: 5,766
Thanks: 79
Thanked 133 Times in 89 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by jwr1527 View Post
A buddy of mine has one that did this and we ended up finding that the small rubber hose (I think its about 3/8 in size) going into the intake on the passenger side had ripped and was causing the high pitched whistle. It's about midway back on the top of the intake. Not sure if its your problem but worth a look.
Sounds like you're talking about the MAP sensor line. Was your buddies truck running bad? Usually a broken MAP line causes all kinds of turbo issues. Could cause a wicked whistle though, 25psi shooting out that little boost line.

BTW, the work you've done on your rig looks great. You have definitely poured some cash in it!
Reply With Quote Quick reply to this message
  #5  
Old 08-04-2012, 03:11 AM
Compression Ignition Addict
 

Join Date: Sep 2010
Location: Sarasota, FL
Posts: 248
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Ya I'm pretty sure that was the line, I wish I had my old 6.0 here to go look at for better reference. But no the truck ran perfect other than the annoying whistle, as much as I can remember anyways, it was a couple years ago now. And thanks, ya I've put quite a bit into it in the last 2 months, now if I could just get my damn wheels to show up I can call it done for little while but I keep finding little things to spend money on to keep my mind off the little tires haha. Should finally after 2 1/2 months have them next week though.
Reply With Quote Quick reply to this message
  #6  
Old 08-04-2012, 05:27 AM
Powerstroke.org Rookie
 

Join Date: Mar 2012
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
it only does it when its hot and it runs perfectly fine and has lots of power. is there a easy way to pin point where the pin hole is in up pipe belows?
Reply With Quote Quick reply to this message
  #7  
Old 08-04-2012, 06:42 AM
Compression Ignition Addict
 

Join Date: Dec 2008
Location: port arthur texas
Posts: 3,580
Thanks: 0
Thanked 22 Times in 21 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by mxr713 View Post
it only does it when its hot and it runs perfectly fine and has lots of power. is there a easy way to pin point where the pin hole is in up pipe belows?
Eventually you should see signs of soot on the firewall.

By the way that whistle doesn't sound like a teakettle does it. Maybe check your degas bottle cap.
Reply With Quote Quick reply to this message
  #8  
Old 08-04-2012, 09:11 AM
Powerstroke.org Sponsor
 

Join Date: Feb 2011
Location: Dallas, GA
Posts: 5,766
Thanks: 79
Thanked 133 Times in 89 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by dannyboy950 View Post
Eventually you should see signs of soot on the firewall.

By the way that whistle doesn't sound like a teakettle does it. Maybe check your degas bottle cap.
^^^This^^^
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may 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 On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 12:51 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors