Boost Fluctuation - Ford Powerstroke Diesel Forum
6.0L Problems Forum Having Trouble? Post here

User Tag List

 
LinkBack Thread Tools Display Modes
post #1 of 5 Old 07-01-2013, 01:16 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Apr 2013
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Boost Fluctuation

Hi Guys, I recently bought a 2004 F250 with the 6.0 PSD. Ever since i had it, the boost would fluctuate slightly under load or cruising down the freeway. I recently welded my EGR cooler shut and cleaned my oil cooler. I removed the turbo and cleaned it all up. I put everything back together and its worse! I had an exhaust leak at the clamp to the EGR cooler. Fixed that but boost still fluctuats. You can hear the turbo whistle fluctuate up and down through out the power band. Installed a boost gauge and you can see the needle move up and down, up and down. Replaced EBP sensor, cleaned tube, cleaned MAP sensor and nipple and hose. Cleaned IAT nipples. Removed IPR valve and cleaned. Ran scanner and everything seems to be withing spec. Only fluctuation i see in anything is the EBP sensor is showing the fluctuation. Removed turbo 6 times to verify everything was OK. Install custom tunes to see if that would help, Nope. Any advice would be appreciated. Thanks!
adam214 is offline  
post #2 of 5 Old 07-01-2013, 03:07 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Apr 2013
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Anyone? I am about ready to blow this thing up.
adam214 is offline  
post #3 of 5 Old 07-04-2013, 12:01 AM
Compression Ignition Addict

 
RollinEarly99's Avatar
 
Join Date: May 2008
Location: Klamath Falls
Posts: 3,379
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 6 Post(s)
Thanks: 29
Thanked 25 Times in 24 Posts
Feedback Score: 10 reviews
Is it possibly the turbo surging? How is the play on the turbos shaft?

05 F-250 Crew Cab Short Bed
ARPs w/OEM Gaskets
MTW Stage 2 w/batmowheel
BPD oil cooler w/ cold weather package
BPD Updated umm...Everything
BPD bypass oil filter
BPD FICM 58v
Spring Mod
Egr deleted
4" Duals
Edge CTS
Custom grille made by Me
X3 w/Matts SRL+/SRLxx and Tow Tunes
Tony WildmanExtreme w/early lockup



RollinEarly99 is offline  
post #4 of 5 Old 07-04-2013, 01:26 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Apr 2013
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by RollinEarly99 View Post
Is it possibly the turbo surging? How is the play on the turbos shaft?
It could be. I have pulled the turbo out 7 times and te shaft seems to have no play. It is pretty tight. the only noticable thing with the turbo is it spins better one way, than the other? I have a boost gauge tapped into intake elbow and boost pressure is fluctuating.
adam214 is offline  
post #5 of 5 Old 04-19-2016, 02:27 PM Thread Starter
Powerstroke.org Rookie
 
Join Date: Apr 2013
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 1 Post(s)
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Im sure no one cares but it turned ot being the turbo. my wife called me and said the truck was smoking and low power. I towed the truck home and removed the turbo. the VGT actuator came apart. put a new actuator in it, same issue. long story short, the linkage horn in the exhuast side of the turbo that moves the unisom ring would stick. Threw a powermax turbo on it and problem solved. I hope this helps anybody else.
adam214 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