99 f 550 hpop leak - 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 02-02-2009, 11:46 AM
bec bec is offline
Member
 

Join Date: Sep 2006
Location: alexander city al.
Posts: 55
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
99 f 550 hpop leak

it appears to be leaking from the plug that they say you should not remove.found that plug to be loose.my concern is that the oring behind this plug is bad.it is the plug that is at the end of the hpop housing where the ipr screws in.the bulletins i have read only called for three orings that were able to be serviced the two oil line fittings and the plug on the rear of the pump.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 02-02-2009, 11:49 AM
Viking Heavy Diesel

 

Join Date: Nov 2007
Location: 34'.6264 -98.4192
Posts: 20,704
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
The only advice I have is "dont" undo the plug. Dad undid his when it leaked without knowing that your not supposed to and ended up having to replace the whole HPOP over it!
Reply With Quote Quick reply to this message
  #3  
Old 02-02-2009, 12:00 PM
Compression Ignition Addict
 

Join Date: Nov 2008
Location: Crane/Evansville, IN
Posts: 7,847
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 1 reviews
Im not sure on the problem but I would take RRonning1984's advice!
Reply With Quote Quick reply to this message
  #4  
Old 02-03-2009, 06:04 AM
bec bec is offline
Member
 

Join Date: Sep 2006
Location: alexander city al.
Posts: 55
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
gonna put it back up and give it a try, sure will be alot cheaper if it works.thanks for the replys
Reply With Quote Quick reply to this message
  #5  
Old 02-03-2009, 06:08 AM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: Effingham
Posts: 298
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Hate to sound ignorant, but I'm used to it.

What is an "HPOP", and where is it located? My own F550 leaks oil, and I am having trouble figuring where/why...
Reply With Quote Quick reply to this message
  #6  
Old 02-03-2009, 07:34 AM
Illiana Chapter Director

 

Join Date: Feb 2008
Location: Bloomington, IN.
Posts: 11,912
Thanks: 4
Thanked 47 Times in 44 Posts
Feedback Score: 2 reviews
Quote:
Originally Posted by oldtimer550 View Post
Hate to sound ignorant, but I'm used to it.

What is an "HPOP", and where is it located? My own F550 leaks oil, and I am having trouble figuring where/why...
HPOP = High Pressure Oil Pump.
Reply With Quote Quick reply to this message
  #7  
Old 02-03-2009, 07:55 AM
BRS BRS is offline
Premium Member
 

Join Date: May 2008
Location: Leesburg, VA
Posts: 207
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I just replaced my HPOP because of a leak on that plug a couple weeks ago. Thread is here:

help 99 7.3 stalling while driving

I started to pull the plug, but it was cold as hell that day (like 10-20) and I didn't have a garage to work in, so I took the quick route and just replaced the HPOP. You have to torch it to get that plug out, and few places sell the full oring kit.

Replacement O-rings for Diesel Engines

This is one of the few places that sells a full 7-piece HPOP oring kit, and they have some instructions for plug removal.

Good luck!
Reply With Quote Quick reply to this message
  #8  
Old 10-24-2011, 06:22 PM
Powerstroke.org Rookie
 

Join Date: Oct 2011
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
HPOP explained

oldtimer550, the high pressure oil pump (HPOP) is part of the hydraulic electronic unit injection (HEUI), these injectors are electronically controlled and hydraulically actuated. Hince why the 7.3 wont start if its low on oil. Hope that gets you on track!
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 01:03 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