2004 F350 PSD - 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 05-21-2008, 05:37 PM
Powerstroke.org Rookie
 

Join Date: May 2008
Location: Lizton,In
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to tubbycrisco
2004 F350 PSD

Truck Has 130,000 Has no oil pressure at idle off idle 35psi.Long crank time to start. Confirmed no to very slight pressure at idle with mechanical gage.No unusual noise from engine & oil and filter ok. Any clues or help
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 05-21-2008, 05:55 PM
Compression Ignition Addict
 

Join Date: Oct 2007
Location: Asheville/Fairview, NC
Posts: 4,778
Thanks: 10
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
Are you using an aftermarket oil pressure guage? and if so, where are you getting your reading from?
Reply With Quote Quick reply to this message
  #3  
Old 05-21-2008, 06:04 PM
Powerstroke.org Rookie
 

Join Date: May 2008
Location: Lizton,In
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to tubbycrisco
No oil pressure at idle

Removed oil pressure sending unit for factory electronic gage and confirmed oil pressure was very low to 0 at idle
Reply With Quote Quick reply to this message
  #4  
Old 05-21-2008, 06:19 PM
Compression Ignition Addict
 

Join Date: Oct 2007
Location: Asheville/Fairview, NC
Posts: 4,778
Thanks: 10
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
So you are using an aftermarket gauge, and taking your reading from where the sending unit for the factory guage goes?
Reply With Quote Quick reply to this message
  #5  
Old 05-21-2008, 06:35 PM
Powerstroke.org Rookie
 

Join Date: May 2008
Location: Lizton,In
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to tubbycrisco
Yes this was to confirm what the factory gage was also showing. It also showed no oil pressure at idle and would set off the alarm so I installed a manual test gage to test oil pressure and it also shows low or 0 psi at idle but good pressure with slight throttle 1000rpm will go to 35 to 40 and stay there until throttle released and then goes back to 0psi when shut off for a little while will take excessive crank time to restart if sets over night take a very long crank time to start and get oil pressure.Need to know what would cause no to very low oil pressure at idle like this and it happened suddenly.During a drive all was ok then after slowing to stop noticed low oil pressure warning alarm.

Last edited by tubbycrisco; 05-21-2008 at 06:41 PM.
Reply With Quote Quick reply to this message
  #6  
Old 05-21-2008, 06:54 PM
Compression Ignition Addict
 

Join Date: Oct 2007
Location: Asheville/Fairview, NC
Posts: 4,778
Thanks: 10
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
Alright, just wanted to make sure you weren't using the factory guage, since its a dummy guage. and "on or off" guage in other words.

But i dont know 6.0's very well, so i'm of no help to you in the cause of yur low Oil Press.

Let me get this thread moved for you to the 6.0 section(prolly should have put it there to begin with), so the techs and such will see it.
Reply With Quote Quick reply to this message
  #7  
Old 05-21-2008, 07:06 PM
Powerstroke.org Rookie
 

Join Date: May 2008
Location: Lizton,In
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to tubbycrisco
Sounds good to me,thanks
Reply With Quote Quick reply to this message
  #8  
Old 05-21-2008, 07:30 PM
Compression Ignition Addict
 

Join Date: Oct 2007
Location: Asheville/Fairview, NC
Posts: 4,778
Thanks: 10
Thanked 4 Times in 4 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by tubbycrisco View Post
Sounds good to me,thanks
No problem man, got shane to move it for ya!!


A tech should along shortly to help you with yur problem!!
Reply With Quote Quick reply to this message
  #9  
Old 06-23-2008, 06:47 PM
Powerstroke.org Rookie
 

Join Date: May 2008
Location: Lizton,In
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to tubbycrisco
Just to update those that may have a similar problem.The Oil filter housing and oil cooler were removed for inspection.There were bits of fiber and or plastic debris removed from the filter housing some lodged in the bypass and bleed back valve.There is a screen under the oil cooler.During this inspection part of the screen had been blown out.Still not sure of the root cause of the loss oil pressure at idle.The harmonic balancer was removed and the geroter oil pump and housing were inspected for wear.This is the low pressure oil pump that supplies main engine oil pressure.All checked to be OK.The oil pan was then removed to inspect the oil sump for contamination and clogging.There was some fiber and plastic type material.but didn't appear to be much.But the break threw came with the finding of approx.3/8 diameter ball bearing in the oil pan .This turns out to be a check valve in the high pressure oil pump under the turbo.When it dislodged from the pump it tore a hole in the screen under the oil cooler,causing oil pressure to drop at idle.A couple grand later a lot of work, pulling hair out,research and phone calls its fixed.

Last edited by tubbycrisco; 06-23-2008 at 06:51 PM.
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 03:00 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