good boost not much power - Ford Powerstroke Diesel Forum
6.4L 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 08-21-2013, 09:51 PM
Powerstroke.org Rookie
 

Join Date: Sep 2011
Location: spring
Posts: 21
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
good boost not much power

My truck is a 08 f350 srw. Cold air intake,egr block off plates and hose reroute, and canned sct offroad tunes and 35x12.5x20 tires. 150,000 miles
I have noticed lately a lack of power low and high speeds. Boost seems to act normal and will still get in the 30+ range when under heavy load.
truck does puke under load but idles and drives great. Just doesn't have the kick in the pants it use too. Feels almost as if I am running the stock tune or less.
I have talked with sct and they say my runner and tunes seem to be fine.
Any help would be great.
Thanks
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 08-22-2013, 07:54 AM
Compression Ignition Addict
 

Join Date: Oct 2012
Location: Texas
Posts: 200
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Just a thought. I keeped throwing an EBP code and thought it was the sensor. Come to find out....even though the truck was holding 45psi under hard power it should be around 50 and i noticed a hissing from the rear left of the engine and it's getting louder from the EGR down pipe to my EGR coolers that I deleted and did a block off was leaking at the flex tube. Check for boost leaks. My 08 has 140K. I'm going to take out that pipe and relocate the EBP sensor using the existing block off plate.
Reply With Quote Quick reply to this message
  #3  
Old 08-22-2013, 08:05 AM
Powerstroke.org Rookie
 

Join Date: Sep 2011
Location: spring
Posts: 21
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I don't have any codes. And I replaced the ebp sensor.
Reply With Quote Quick reply to this message
  #4  
Old 08-22-2013, 11:50 AM
Compression Ignition Addict
 

Join Date: Oct 2012
Location: Texas
Posts: 200
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Check for boost leaks around the couplers and the flex pipe on the back of the engine that goes down to your EGR cooler.
Reply With Quote Quick reply to this message
  #5  
Old 08-22-2013, 12:11 PM
Premium Member

 

Join Date: Oct 2012
Location: Arizona
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to flashover1969
Puking what under load?
Reply With Quote Quick reply to this message
  #6  
Old 08-22-2013, 10:27 PM
Powerstroke.org Rookie
 

Join Date: Sep 2011
Location: spring
Posts: 21
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Pukes coolant from reservoir
Reply With Quote Quick reply to this message
  #7  
Old 08-23-2013, 06:09 AM
Premium Member

 

Join Date: Oct 2012
Location: Arizona
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to flashover1969
What's your engine temp under load? Puking coolant out your degas can be a sign of a blown head gasket. I'm not saying you do just keep it in mind. If you can't find any air leaks in the boost system, check your MAP, EBP sensor, and tube. They usually get plugged and fouled with soot/oil.
Reply With Quote Quick reply to this message
  #8  
Old 08-27-2013, 07:20 PM
Powerstroke.org Rookie
 

Join Date: Sep 2011
Location: spring
Posts: 21
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
If I am still seeing 40psi boost could I still have a turbo leak big enough to be noticeable? I thought if a flex pipe or other was leaking that I would not have good boost.
Reply With Quote Quick reply to this message
  #9  
Old 09-01-2013, 04:40 PM
Compression Ignition Addict
 

Join Date: Oct 2012
Location: Texas
Posts: 200
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
You would hear a boost leak. After deleting my EGR i didn't remove the up pipe just blocked it off and the flex pipe for the up pipe started hissing. This noise was under load and not under load.
Reply With Quote Quick reply to this message
  #10  
Old 09-03-2013, 07:13 AM
Powerstroke.org Fanatic
 

Join Date: May 2012
Location: Huntsville
Posts: 100
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Hate to say it but puking under load is one of the main signs of blown head gaskets. You may want to have the dealer take a look at that or put a gauge on the cooling system and check it under heavy load. If you keep putting loads on that engine with a blown head gasket you're going to cause more damage and it will be even more $$$$$.
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 11:04 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