valve leading to downpipe trouble? - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 9 Old 12-08-2006, 01:09 PM Thread Starter
smokin n strokin
 
Join Date: Sep 2006
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
valve leading to downpipe trouble?

the butterfly valve going to the downpipe keeps closing on me while im driving even at over 2500 rpms it just started to do this when the temperature dropped in upstate newyork to about 20 degrees. any remedies for this problem would be much appreciated thanks guys
adam95 is offline  
Sponsored Links
Advertisement
 
post #2 of 9 Old 12-08-2006, 01:16 PM
BIG TRUCK, SMALL DRIVER
 
pipelayerjdh's Avatar
 
Join Date: Oct 2006
Location: Iva, SC
Posts: 5,877
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
It's called the Exhaust Backpressure Valve. It activates at cold temps to warm the engine. The easiest fix is to disconnect the two-wire plug going to it. The plug is on the driver-side under the compressor housing. You may have to remove the intake hose to get to it. You can also gut the valve.

Derrick


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.




To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


'97 F-350 "FORDOR" 4X4 (Dually Conversion, Shackle Reversal, Technicooler , Auto Meter Gauges, 4" DIY Dual Exhaust w/ '08 tips,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
, Wicked Wheel 2, 360 thrust bearing, Homemade E-fuel conversion, Wildman Chip,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
) 230K and counting...
pipelayerjdh is offline  
post #3 of 9 Old 12-08-2006, 01:33 PM Thread Starter
smokin n strokin
 
Join Date: Sep 2006
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
thanks

thanks pipelayer i appreciate the advice, im gonna go disconnect that wire now.
adam95 is offline  
post #4 of 9 Old 12-08-2006, 01:45 PM
BIG TRUCK, SMALL DRIVER
 
pipelayerjdh's Avatar
 
Join Date: Oct 2006
Location: Iva, SC
Posts: 5,877
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Are you plugging your truck in at night?

Derrick


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.




To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


'97 F-350 "FORDOR" 4X4 (Dually Conversion, Shackle Reversal, Technicooler , Auto Meter Gauges, 4" DIY Dual Exhaust w/ '08 tips,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
, Wicked Wheel 2, 360 thrust bearing, Homemade E-fuel conversion, Wildman Chip,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
) 230K and counting...
pipelayerjdh is offline  
post #5 of 9 Old 12-09-2006, 11:21 AM Thread Starter
smokin n strokin
 
Join Date: Sep 2006
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
sometimes

i havnt been pluggin git in yet. I heard 20 degrees is the general temp rule for diesels?
adam95 is offline  
post #6 of 9 Old 12-09-2006, 11:35 AM
BIG TRUCK, SMALL DRIVER
 
pipelayerjdh's Avatar
 
Join Date: Oct 2006
Location: Iva, SC
Posts: 5,877
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
See how it does. If it takes too long to warm up, you may want to plug it in.

Derrick


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.




To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


'97 F-350 "FORDOR" 4X4 (Dually Conversion, Shackle Reversal, Technicooler , Auto Meter Gauges, 4" DIY Dual Exhaust w/ '08 tips,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
, Wicked Wheel 2, 360 thrust bearing, Homemade E-fuel conversion, Wildman Chip,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
) 230K and counting...
pipelayerjdh is offline  
post #7 of 9 Old 12-09-2006, 12:16 PM Thread Starter
smokin n strokin
 
Join Date: Sep 2006
Posts: 46
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
thanks pipelayer

thanks for the info pipe layer i appreciate it brother.
adam95 is offline  
post #8 of 9 Old 02-12-2007, 01:24 PM
Powerstroke.org Rookie
 
Join Date: Feb 2007
Location: Illinois
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by adam95 View Post
thanks for the info pipe layer i appreciate it brother.
I may have the same problem, does the make a sucking sound when the valve closes. Mine also looses rpm when this happens but as soon as the truck is warm it disappears.
bear36 is offline  
post #9 of 9 Old 02-12-2007, 01:34 PM
BIG TRUCK, SMALL DRIVER
 
pipelayerjdh's Avatar
 
Join Date: Oct 2006
Location: Iva, SC
Posts: 5,877
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
When the valve closes, it will make the engine feel sluggish and make a hissing sound. The sound is louder with intake and exhaust mods.

Derrick


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.




To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


'97 F-350 "FORDOR" 4X4 (Dually Conversion, Shackle Reversal, Technicooler , Auto Meter Gauges, 4" DIY Dual Exhaust w/ '08 tips,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
, Wicked Wheel 2, 360 thrust bearing, Homemade E-fuel conversion, Wildman Chip,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
) 230K and counting...
pipelayerjdh is offline  
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:
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