Noise when decelerating and at startup? - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 2 Old 08-10-2008, 08:17 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Jan 2007
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Noise when decelerating and at startup?

I have an 02 7.3L PSD.

The other day, it started making this strange "whirring noise". It is audible at start up, then seems to fade away. When decelerating, especially at speeds greater then 20MPH, it is VERY audible. It makes the noise regardless of whether I am braking or coasting.

It does not appear to make the noise while it is in neutral, only when in drive or reverse. The noise sounds like it's coming from the drivers side of the truck, as it is harder to hear from the passenger seat.

Any help in resolving this would be much appreciated!
Joe1911 is offline  
post #2 of 2 Old 08-11-2008, 01:51 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Jan 2007
Posts: 24
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Some further investigation revealed:

The noise is heard at Idle, however if the accelerator is pressed, the noise immediately goes away. If the Engine RPM's remain above 1000, the noise is not present. Only is audible when 1000 or less RPMs.

I popped the hood and let it idle. The sound appears to be coming from the middle of the truck. Sounds like perhaps the fan clutch?

Does this sound possible?
Joe1911 is offline  
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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome