what the heck could this sound be?? - Ford Powerstroke Diesel Forum
6.0L Problems Forum Having Trouble? Post here

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 09-02-2011, 07:55 AM
Compression Ignition Addict
 

Join Date: Oct 2010
Location: pittsburgh
Posts: 245
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
what the heck could this sound be??

My buddy has a 2004 6.0 with 180k miles. pretty much bone stock. onlything he has done to it is he is running the newer edge evolution (not shift on fly version) truck has been solid its entire life, never had any issues up until about 10k miles ago it started with some injector issues, rough idle, rough start till warm, injector codes, after warm runs great..

on his way home from a long trip he started hearing a loud rush of air sound when on the throttle.

sounds like one of those accelerator hand dryers in public restrooms. as rpms get higher the sound gets louder.

it will not do it unless its under load. if you put it in neutral and rev engine it does not make any sound.

any help would be appreciated..
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 09-02-2011, 07:58 AM
Compression Ignition Addict
 

Join Date: Oct 2010
Location: pittsburgh
Posts: 245
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
o yeah, no lack of performance either.
Reply With Quote Quick reply to this message
  #3  
Old 09-02-2011, 08:35 AM
Compression Ignition Addict
 

Join Date: Nov 2008
Location: Lumberton, TX
Posts: 855
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Have you checked for a turbo boot leak? They don't have to blow off; a small crack can make a lot of noise and still allow you to build some boost.
Reply With Quote Quick reply to this message
  #4  
Old 09-02-2011, 08:55 AM
information regurgitator
 

Join Date: Dec 2010
Location: NYC
Posts: 5,912
Thanks: 18
Thanked 180 Times in 167 Posts
Feedback Score: 0 reviews
Check those boots by removing them. Visual inspections while they are installed can miss quite a bit of area, and the area where they fail the most.
If the boots have a brown/gray look to them, its time to replace them anyway. That color change is caused by the oil from the CCV. The oil breaks down silicone and the oil actually gets pushed through the boot from the inside by boost pressure, making the boot very porous. The oil stays on the outer surface and that brown color is the road grime that stuck to the oil.

Next, the exhaust;
Check the expansion joints on the y-pipe, the connecting points at the manifold, the manifolds to the block and the y-pipe to the turbo connection (check the clamp all the way around with a flashlight and mirror)...basically every connection in the exhaust pre-turbo. If you see soot staining, that is a leak.

Another place to check is the o-ring on the EGR valve. If it is torn, it can cause a noisy leak.
Reply With Quote Quick reply to this message
  #5  
Old 09-02-2011, 09:02 AM
Compression Ignition Addict
 

Join Date: Oct 2010
Location: pittsburgh
Posts: 245
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
thanks guys, i did visually check the boots, guess i need to take a closer look, and check the exhaust connections too.
Reply With Quote Quick reply to this message
  #6  
Old 09-05-2011, 09:50 PM
Compression Ignition Addict
 

Join Date: Mar 2009
Location: Seattle
Posts: 328
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Clutch fan? The thing sounds like it's gonna explode when it kicks on.
Reply With Quote Quick reply to this message
  #7  
Old 09-06-2011, 07:09 AM
Compression Ignition Addict
 

Join Date: Oct 2010
Location: pittsburgh
Posts: 245
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by v8Stroker View Post
Clutch fan? The thing sounds like it's gonna explode when it kicks on.
yes it is loud, but this sound all of the sudden just appeared. if it was the clutch fan, wouldn't he have noticed it before?

thanks
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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 10:19 PM.


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