01 7.3 won't fire up - 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 05-26-2013, 10:15 AM
Powerstroke.org Rookie
 

Join Date: May 2013
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
01 7.3 won't fire up

I have a 2001 f-250 7.3. About two months ago while driving down the road it just stopped running. There seemed to be a loud pop or click, and it just stopped running.
It cranks over fine. Had a newer fuel, and air filter and plenty of fuel.
Cam shaft sensor has been replaced twice since ( just to make sure it wasn't a bad part).
When I crank it. The rpm gauge moves up a bit, but the oil gauge doesn't move a bit.
I have been told that it sounds like the HPOP. This is a second vehicle, so is rather not spend a lot of money fixing parts that aren't broken.
I'm a stone mason by trade, but have fixed many others things with my trucks over the years.
ANY help is appreciated
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 05-26-2013, 10:37 AM
Illiana Chapter Director

 

Join Date: Feb 2008
Location: Bloomington, IN.
Posts: 12,486
Thanks: 5
Thanked 99 Times in 94 Posts
Feedback Score: 2 reviews
If the oil pressure gauge isn't moving at all, it's more likely an LPOP issue instead of HPOP.
Reply With Quote Quick reply to this message
  #3  
Old 05-26-2013, 10:54 AM
Powerstroke.org Rookie
 

Join Date: May 2013
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
So are we talking the one inside the crank? Taking engine out and fixing it?
Reply With Quote Quick reply to this message
  #4  
Old 05-26-2013, 11:02 AM
Illiana Chapter Director

 

Join Date: Feb 2008
Location: Bloomington, IN.
Posts: 12,486
Thanks: 5
Thanked 99 Times in 94 Posts
Feedback Score: 2 reviews
That would be the one but the engine doesn't have to be removed to replace it.
Reply With Quote Quick reply to this message
  #5  
Old 05-26-2013, 11:37 AM
Powerstroke.org Rookie
 

Join Date: May 2013
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Ok. So what makes you think it's the lpop and not the hpop? Can I do any kind of test to check ( maybe fill up hpop reservoir?)
Reply With Quote Quick reply to this message
  #6  
Old 05-26-2013, 06:40 PM
Illiana Chapter Director

 

Join Date: Feb 2008
Location: Bloomington, IN.
Posts: 12,486
Thanks: 5
Thanked 99 Times in 94 Posts
Feedback Score: 2 reviews
Your gauge shows LPOP pressure and not HPOP. The LPOP feeds the HPOP so of it's not functioning properly, the HPO system won't function. You need to check for base oil pressure first and then you really need a good scan tool or Auto Enginuity so you can monitor your ICP and IPR values. I'm not exactly sure how to check for base pressure on a 7.3 though. I mostly work on 6.0's but maybe someone will chime in here with some info.
Reply With Quote Quick reply to this message
  #7  
Old 05-27-2013, 04:33 AM
Powerstroke.org Rookie
 

Join Date: May 2013
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Ok, I understand now. I read on another forum that if I fill up the hpop reservoir it should start up... Should I try this?
Thanks for all your help! Just trying to get my ole girl back on the road
Reply With Quote Quick reply to this message
  #8  
Old 05-27-2013, 09:33 AM
Illiana Chapter Director

 

Join Date: Feb 2008
Location: Bloomington, IN.
Posts: 12,486
Thanks: 5
Thanked 99 Times in 94 Posts
Feedback Score: 2 reviews
Quote:
Originally Posted by Ovalover View Post
Ok, I understand now. I read on another forum that if I fill up the hpop reservoir it should start up... Should I try this?
Thanks for all your help! Just trying to get my ole girl back on the road
I don't know if I'd do it or not. If it would happen to start and you really do have an LPOP issue, you would be supplying any oil to the bearings and top end since the LPOP takes care of engine lubrication. I might not be correct on that but without knowing for sure, I'd be hesitant.
Reply With Quote Quick reply to this message
  #9  
Old 05-27-2013, 04:41 PM
Powerstroke.org Rookie
 

Join Date: May 2013
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
So today I took off the cover to the reservoir of the hpop. It was dry. I tried cranking the engine and no oil got pumped into it. So, I am guessing its either the draw tube or the lpop.
Reply With Quote Quick reply to this message
  #10  
Old 05-31-2013, 05:23 PM
Premium Member
 

Join Date: Jul 2012
Posts: 286
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
I vote LPOP as a good starting point. Should not be to hard either. Grab a high volume LPOP from your local parts store. Should be about $75 bucks. You will need a harmonic balancer puller, 10mm socket and I believe a 15/16 socket and breaker bar. The old LPOP pump needs to go over the crank facing one direction, but the new pumps can go on either direction. Directions say to soak LPOP gears in oil for a bit before install.

I would also inspect the timing cover where the LPOP rides against. If there are any major scratches you will probably need a new front cover which does mean pulling the motor. I am betting that the cover would be scratched before the LPOP is bad. my 2cents
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 12:26 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