99 7.3 loss of power HELP! - Ford Powerstroke Diesel Forum
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 01-03-2013, 02:54 PM
Compression Ignition Addict
 

Join Date: May 2012
Posts: 168
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
99 7.3 loss of power HELP!

I have a 99 7.3 F350 and these last few days ive been noticing that my throttle isnt what is used to be. the truck runs and cranks fine and idles like it always have. its like now im having to press the petal twice as much as i did before just to get it up and going. ive got 22.5s on it and the tranny was built about a year ago. the truck still shifts fine and drives like normal but its just like its lost half of the power it once had. i looked under the hood and noticed alot of black soot around the 2 pipes that go into the front of the turbo at their couplings. maybe there leaking to much air?? also there is no skipping so i didnt think it could be a fuel problem? any input would greatly help thanks guys
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 01-03-2013, 09:38 PM
Compression Ignition Addict
 

Join Date: Apr 2012
Posts: 1,111
Thanks: 1
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
yea, it's probably the up pipes you noticed billowing out smoke. those feed the turbo. if they leak, you lose turbo performance. that's probably where your lack of power has resulted
Reply With Quote Quick reply to this message
  #3  
Old 01-04-2013, 04:32 AM
Compression Ignition Addict
 

Join Date: May 2012
Posts: 168
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Ok where can I buy some new ones with the couplings? Maybe some aftermarket ones?


Sent from my iPhone using AutoGuide.com App
Reply With Quote Quick reply to this message
  #4  
Old 01-04-2013, 05:18 AM
Compression Ignition Addict
 

Join Date: Feb 2011
Location: Loudonville OH
Posts: 1,270
Thanks: 30
Thanked 20 Times in 18 Posts
Feedback Score: 0 reviews
Riffraff sells early and late up pipes
Reply With Quote Quick reply to this message
  #5  
Old 01-04-2013, 06:00 AM
Compression Ignition Addict
 

Join Date: May 2012
Posts: 168
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
i noticed the pipes that were leaking was the pipes that run from the inter cooler to the front of the turbo that you can see when you pop the hood. isnt the up pipes on the back of the turbo you cant really see them
Reply With Quote Quick reply to this message
  #6  
Old 01-04-2013, 06:08 AM
Premium Member
 

Join Date: Feb 2010
Posts: 1,177
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 1 reviews
Yes, you're talking about the intercooler pipes that go into the spider. Boost leaks will cause a loss of power. Take them off, clean them with a good degreaser and reinstall and then try it.

The CCV mod will help with this too.

The up pipes are what feeds the back of the turbo from the manifolds. If you see soot there, you might want to look into replacement bellowed up pipes or new gaskets.

Dieselorings: International Bellowed Up-pipe Kit 99.5-03
Reply With Quote Quick reply to this message
  #7  
Old 01-05-2013, 08:13 AM
Compression Ignition Addict
 

Join Date: Apr 2012
Posts: 1,111
Thanks: 1
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by jec92 View Post
i noticed the pipes that were leaking was the pipes that run from the inter cooler to the front of the turbo that you can see when you pop the hood. isnt the up pipes on the back of the turbo you cant really see them
LMFAO. sorry. didn't see that you said FRONT. however, if there is soot, it's exhaust. and wouldn't be leaking out the charge pipes. i'd want to find out where the soot is coming from first and foremost. could be the downpipe (which wouldn't really hinder performance), could be the up pipes, rear flange, or could even be the turbo itself
Reply With Quote Quick reply to this message
  #8  
Old 01-09-2013, 02:10 PM
Compression Ignition Addict
 

Join Date: May 2012
Posts: 168
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
99 7.3 loss of power HELP!-imageuploadedbyautoguide1357769311.486560.jpg99 7.3 loss of power HELP!-imageuploadedbyautoguide1357769320.818777.jpg99 7.3 loss of power HELP!-imageuploadedbyautoguide1357769331.419255.jpg99 7.3 loss of power HELP!-imageuploadedbyautoguide1357769340.302382.jpg
Here are some pics of where the soot is is on my pipes, I believe they may be leaking from the rubber couplings that join the pipes, could that be my problem for loss of power? Can't really tell exactly if that's where there coming from. Again the power loss isn't ALOT, but it's enuff to notice


Sent from my iPhone using AutoGuide.com App
Reply With Quote Quick reply to this message
  #9  
Old 01-09-2013, 04:24 PM
Premium Member
 

Join Date: Feb 2010
Posts: 1,177
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 1 reviews
Yes. That is definitely your problem. You really need to look into doing the CCV mod. In the mean time, take both intercooler pipes off and clean them as well *** the IC boots with a degreaser. You'll most likely see oil in these pipes when you take them off, but don't worry it's normal.
Reply With Quote Quick reply to this message
  #10  
Old 01-09-2013, 05:41 PM
Compression Ignition Addict
 

Join Date: May 2012
Posts: 168
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
How am I losing power with them just being dirty tho? I'm not doubting you at all I just wanted to know the reAson for how it would make my truck lag so much.


Sent from my iPhone using AutoGuide.com App
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 07:31 AM.


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