Dear me.. Won't start after HPOP fitting.... - 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 04-25-2009, 06:27 PM
Powerstroke.org Fanatic
 

Join Date: Sep 2008
Posts: 105
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Dear me.. Won't start after HPOP fitting....

I am thoroughly stumped here, gentlemen.

My 07 got hard to start when hot. After some research I checked the HPOP connector & it was bad. Changed it out, put it back together, now it won't start. Cranks well. No codes thrown.

Something strange I noticed is that it shows normal oil pressure as soon as you turn the key on, even when it is not turning over.

Any ideas, Wizards?

Last edited by hardhatz; 04-25-2009 at 06:38 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 04-26-2009, 04:29 AM
Powerstroke.org Rookie
 

Join Date: Oct 2008
Location: Fort wayne, IN
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Which fitting did you replace? I am assuming the STC, but you know what you do when you assume.. Are you reading your oil pressure on a scan tool/manual gauge, or the dummy gauge inside the truck. Because I believe the gauge inside the truck will show pressure on it with as little as 7.5 psi if I remember correctly.
Reply With Quote Quick reply to this message
  #3  
Old 04-26-2009, 07:41 AM
Powerstroke.org Fanatic
 

Join Date: Sep 2008
Posts: 105
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Yes, the STC fitting between the HPOP & the branch.

Yeah, I read that the gauge really is a dummy, showing normal if there is any pressure at all. How stupid... In my case, it shows normal as soon as you turn the key on.

Has anybody tried bleeding the HP oil circuit by taking out the ICP sensor & cranking it over? Also, I read that the IPR valve dumps when de-powered.. would unplugging it be a good way to bleed it?

Last edited by hardhatz; 04-26-2009 at 07:50 AM.
Reply With Quote Quick reply to this message
  #4  
Old 04-26-2009, 07:55 AM
Powerstroke.org Rookie
 

Join Date: Oct 2008
Location: Fort wayne, IN
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Any air trapped in the system will work itself out. It may take a minute or two, but it will work itself out. I would either put a manual gauge, or scanner on it and see exactly what type of oil pressure you have.
Reply With Quote Quick reply to this message
  #5  
Old 04-26-2009, 05:56 PM
Powerstroke.org Fanatic
 

Join Date: Sep 2008
Posts: 105
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
now it surges

OK, it's getting worse..

I pulled the turbo so I could check the IPC & then I took out the IPS & cranked it about a minute total until I got oil out the port, then I was finally able to get it fired up using starting fluid. It took about 10 seconds of running to get oil out of the turbo supply line. The sound of it out the Y pipe was fabulous!

I shut it down & reinstalled the turbo and it started ok, so I shut it off & buttoned everything up & topped the coolant. I put everything else together & suddenly it refused to start without ether. Even after running it an hour, it will not re-start without starting fluid.

It will idle ok. If I try to hold it around 1000 RPM, it surges from 500 to 1500 just like you were flooring the pedal 2 times a second. It is also rough above 2000.

It now throws codes 336 & 683.

It also now makes a big screeching noise when you floor it hard.

If I plug a pressure gauge into the IPS port, will it give me an accurate cranking pressure?
Reply With Quote Quick reply to this message
  #6  
Old 04-27-2009, 03:39 AM
Powerstroke.org Rookie
 

Join Date: Oct 2008
Location: Fort wayne, IN
Posts: 19
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
You can go to a local hydraulic shop and get a adaptor and hose and manual gauge to screw into the ICP sensor port (the sensor on the passenger valve cover at the front) and this will give you your cranking psi.

You need a min of 500 psi to start, and from the sounds of it, once started, it's loosing oil pressure to the hpop. Either due to a leak, or your low oil pump is starving the hpop.
Reply With Quote Quick reply to this message
  #7  
Old 04-27-2009, 05:12 AM
Powerstroke.org Fanatic
 

Join Date: Oct 2008
Location: Thunder Bay
Posts: 143
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by hardhatz View Post
OK, it's getting worse..

I pulled the turbo so I could check the IPC & then I took out the IPS & cranked it about a minute total until I got oil out the port, then I was finally able to get it fired up using starting fluid. It took about 10 seconds of running to get oil out of the turbo supply line. The sound of it out the Y pipe was fabulous!

I shut it down & reinstalled the turbo and it started ok, so I shut it off & buttoned everything up & topped the coolant. I put everything else together & suddenly it refused to start without ether. Even after running it an hour, it will not re-start without starting fluid.

It will idle ok. If I try to hold it around 1000 RPM, it surges from 500 to 1500 just like you were flooring the pedal 2 times a second. It is also rough above 2000.

It now throws codes 336 & 683.

It also now makes a big screeching noise when you floor it hard.

If I plug a pressure gauge into the IPS port, will it give me an accurate cranking pressure?
Reply With Quote Quick reply to this message
  #8  
Old 04-27-2009, 05:30 PM
Premium Member
 

Join Date: Feb 2007
Location: Wisconsin
Posts: 1,366
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
What kind of scanner do you have?
Reply With Quote Quick reply to this message
  #9  
Old 04-27-2009, 06:27 PM
Powerstroke.org Fanatic
 

Join Date: Sep 2008
Posts: 105
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Not sure.. Orange, I know that. I also have an SCT that scans, maybe I should try it...
Prolly should clarify my "starting fluid" penetrating oil & propane, and just enough to keep it ticking over maybe 3-400 rpm. I disconnected the glows.
Reply With Quote Quick reply to this message
  #10  
Old 04-27-2009, 07:47 PM
Powerstroke Techie

 

Join Date: Jun 2008
Location: Brampton, Ontario, Canada
Posts: 2,584
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
This is going to sound like a stupid question. Were you actually able to get the truck to fire up and run, after the repair? If so, how long did you actually let it run for? Typically, after any repair that requires opening up of the high pressure oil system in any way (ie injector(s), high pressure oil rail(s), standpipe(s), and /or the pump itself), much longer initial engine crank time is to be expected. And in answer to your question, NO the high pressure oil system does NOT require bleeding in the sense that you are thinking of. What I usually do after any extensive repair, is I start the engine and run it at FULL THROTTLE (foot to the floor), until operating temperature is reached. At this point, is where I would road test the vehicle for a few miles in order to keep the system primed. And no, revving the engine at 3800 RPMs is NOT bad for the engine, in case any of you are wondering. Remember, these engines are GOVERNED, which means you can't blow it up.

What you need to do, is monitor ICP volts, ICP psi and IPR % on your scan tool. You need to monitor those three pieces of info, at key-on/engine-off, while cranking the engine, and at key-on/engine-running (when at operating temperature, if you manage to get the engine started).

Ignore your P0336 and P0683 DTCs. Those were probably set when you disconnected the glow plug control module.
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 12:44 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