oil around boost tubes - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 01-19-2014, 05:21 PM

Join Date: Oct 2012
Posts: 51
Thanks: 1
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
oil around boost tubes

I have 01 F350 all stock with a 180k, and I started loosing mpg awhile ago, im at 250 mile on a tank of fuel, with a 25 gallon tank, not good. What I noticed is oil around the boost tube joints especially the one comeing out of the inner cooler, is there some oil in these tubes? I cleaned the outside of these pipes about 5k miles ago, and there wet again. This is my 1st diesel so im alittle green, but I need better than 10 mpg running empty. Help!!!I
Reply With Quote Quick reply to this message
Sponsored Links
Old 01-19-2014, 06:16 PM
Premium Member

Join Date: Jan 2014
Location: Medora
Posts: 27
Thanks: 0
Thanked 2 Times in 2 Posts
Feedback Score: 0 reviews
Oil is in the tubes.

The CCV (Crank Case Vent) is to the air intake just ahead of the turbo, directly above driver's side valve cover. This will be the source of most of the oil that gets into the pipes. The turbo can occasionally leak oil into the charge pipes as well but I have not seen this personally.

There are a lot of things that can drop fuel economy so I can't guarantee that the oil is the culprit. At the very least see if you can figure out how much oil has collected in your inter cooler as you can loose efficiency if it is badly blocked. If you feel ambitious or there is a lot of oil in the inter cooler, pulling it out of the truck and cleaning it internally with simple green and a good flush of water could make a difference.

To get better advice provide more info about how you operate your truck and how it is set up. Useful info to me would be measured fuel pressure, exhaust back pressure values and boost values. Also helpful would be gearing and tire size, as well as desired operating speed and engine rpm.

Thanks and good luck,

Reply With Quote Quick reply to this message
Old 01-19-2014, 07:50 PM

Join Date: Oct 2012
Posts: 51
Thanks: 1
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
It is bone stock except for tire 285/75/16, ccsb, no guages, where would I measure fuel pressure? How do check exhaust back pressure?
Reply With Quote Quick reply to this message
Sponsored Links

Quick Reply

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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


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 07:47 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.