Oil pressure gauge jumping 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 12-02-2010, 09:13 AM
Compression Ignition Addict
 

Join Date: Dec 2007
Location: Rockland NY
Posts: 159
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Exclamation Oil pressure gauge jumping HELP

Ok so I started my truck this morning, didnt notice anything wrong, till I started driving, the oil pressure gauge is jumping from low to normal, it seems more so when im turning or braking. Any ideas would be breat.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 12-02-2010, 09:19 AM
Compression Ignition Addict
 

Join Date: Jun 2008
Location: Brewster, NY
Posts: 1,180
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
The oil pressure gauge is a simple switch. When oil pressure is at 7 lbs or greater the switch is closed and the dash gauge reads normal (or half way). When under 7 lbs it reads none, or low. The switch (sending unit) is located in the oil cooler housing, specifically in the passageway which leads to the turbo, but after the oil filter.

That said, you should first check your oil level, be sure you are filled up. Second pull out the oil filter. Is it the Motorcraft version or another brand? If everything is good, you may have a low pressure oil pump issue.

When the gauge drops, is there any performance issue as well?
Reply With Quote Quick reply to this message
  #3  
Old 12-02-2010, 09:23 AM
Compression Ignition Addict
 

Join Date: Dec 2007
Location: Rockland NY
Posts: 159
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
None that I can notice, how can I tell if it is an oil pump issue
Reply With Quote Quick reply to this message
  #4  
Old 12-02-2010, 09:29 AM
Compression Ignition Addict
 

Join Date: Jun 2008
Location: Brewster, NY
Posts: 1,180
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
You can hook up an actual oil pressure gauge and see what the actual pressure is. When was your last oil change, and what brand filter was used? There's a video floating around about the use of non-motorcraft filters in the 6.0's. A lot of filters are too short and don't keep the drain plug sealed. which will lower your pressure.
Reply With Quote Quick reply to this message
  #5  
Old 12-02-2010, 09:30 AM
Compression Ignition Addict
 

Join Date: Dec 2007
Location: Rockland NY
Posts: 159
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I did an oil change a while ago, I know im over due, where can I get an oil pressure gauge, and how do I check the oil pressure, oil filter is motorcraft.
Reply With Quote Quick reply to this message
  #6  
Old 12-02-2010, 09:51 AM
Compression Ignition Addict
 

Join Date: Jun 2008
Location: Brewster, NY
Posts: 1,180
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
You can get an oil pressure gauge at an autoparts store and plug it in in place of the oil pressure sending unit. If the above is good, you're not having any performance issues (removing any high pressure leaks) and the oil pressure is going below 7 psi, I would think that it points to a low pressure pump problem.
Reply With Quote Quick reply to this message
  #7  
Old 12-02-2010, 09:52 AM
Compression Ignition Addict
 

Join Date: May 2010
Location: New Market, AL
Posts: 165
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
or a sending unit sensor problem, or a bad connection
Reply With Quote Quick reply to this message
  #8  
Old 12-02-2010, 09:55 AM
Compression Ignition Addict
 

Join Date: Dec 2007
Location: Rockland NY
Posts: 159
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Ok so the oil pressure gauge is one of the auto meter ones, where exactly is the sending unit,
Reply With Quote Quick reply to this message
  #9  
Old 12-02-2010, 10:16 AM
Compression Ignition Addict
 

Join Date: Dec 2007
Location: Rockland NY
Posts: 159
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Please guys, what gauge do I get, is it the pillar mount gauge,
Reply With Quote Quick reply to this message
  #10  
Old 12-02-2010, 10:26 AM
Compression Ignition Addict
 

Join Date: Jun 2008
Location: Brewster, NY
Posts: 1,180
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
The gauge that you get is up to you, if it were me I would get something inexpensive that you can remove once you determine your issue. On the oil cooler there are 2 sensors. The one with 2 wires is for the oil temperature, the one with one is for the pressure sensor. There may be an oil pressure test port, but I have never used it. As War Eagle mentioned, it may be wiring or the sensor itself. I would start with the easy stuff first, oil filter, check the wires etc, then move onto a gauge.
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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 11:28 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