01 7.3 Powerstroke starts fine cold; after 10minutes then MIL on and runs rough. - 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 04-18-2011, 10:19 AM
Powerstroke.org Rookie
 

Join Date: Apr 2011
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
01 7.3 Powerstroke starts fine cold; after 10minutes then MIL on and runs rough.

New to site, and new to working on diesels. Have read forum last few weeks, but still no luck. Here’s the story:

Starts fine in morning and runs well. Then after 10 minutes/5miles, the MIL "service engine soon" light on and runs rough. Next day same thing, repeated this 3 times in a row now. 4 hours later (lunch) still runs rough with MIL, and 6 hours (go home) still rough with MIL. Try OBDII scan, but no codes, even tried while running and MIL came on, but still no codes.

Van is 2001 E350 7.3 Powerstroke Turbo Diesel. It has had Biodiesel conversion added, and run B20 sometimes. It did break down on me a couple months ago. Think out of fuel, but still 1/8 on gauge. Filling and starting took 30 minutes to get it going. Opened fuel filter housing, and put back together. Been running rough (when warm) ever since.

After looking at forum, have many ideas, but can someone help narrow and prioritize this list?

- Air in Fuel Lines: ran 30 miles with no improvement, runs good cold. Would a air leak match with symptoms.
- Valve Harness UVCH(under valve cover harness): nothing tried here yet
- Valve Cover plug: nothing tried here yet
- CPS (Cam Position Sensor Recall 07S57): mine already replaced.
- HPOP high pressure oil pump: checked oil and with ¾” to top, ran with nut slightly cracked and a little oil comes out; oil tank level good
- IPR Injector Pressure Relay: nothing tried here yet, but sounds like this was fix to similar symptoms from others
- MAP Manifold Absolute Pressure: idle to full throttle is 30in to 50in (same when MIL on or off)
- ICP Injection Control Pressure sensor: nothing tried yet here
- Fuel Additive: just put some in tank about 15 miles ago
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 04-18-2011, 10:29 AM
Compression Ignition Addict
 

Join Date: Mar 2011
Location: Oil patch, North Dakota
Posts: 664
Thanks: 0
Thanked 5 Times in 5 Posts
Feedback Score: 0 reviews
you got a good list started there. i doubt you would still have air in the fuel lines though. if the check engine light came on you should have a code, maybe try a different scanner.
I would check the wiring harnesses first, its free and not too bad to do. kinda makes sence the UVCH could be getting coated with oil after a few minutes and shorting out. Im not a pro but i would start with those two and move on from there.
Reply With Quote Quick reply to this message
  #3  
Old 04-18-2011, 10:49 AM
Compression Ignition Addict
 

Join Date: Dec 2007
Posts: 2,865
Thanks: 6
Thanked 1 Time in 1 Post
Feedback Score: 2 reviews
obd 2 scanners wont ork on these trucks
Reply With Quote Quick reply to this message
  #4  
Old 04-18-2011, 11:05 AM
Powerstroke.org Rookie
 

Join Date: Apr 2011
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Thanks for quick reply.

Cody- when checking harness, what should I look for and do?

Melmount- the OBD II seems to hook-up fine, just haven't read any codes. Is there other scanners to use?
Reply With Quote Quick reply to this message
  #5  
Old 04-18-2011, 11:16 AM
Compression Ignition Addict
 

Join Date: Dec 2010
Location: IOWA
Posts: 2,542
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via Skype™ to 2003kingranch
you could try to go to the parts store and use their scanner
Reply With Quote Quick reply to this message
  #6  
Old 04-18-2011, 11:33 AM
Compression Ignition Addict
 

Join Date: Dec 2007
Posts: 2,865
Thanks: 6
Thanked 1 Time in 1 Post
Feedback Score: 2 reviews
parts store scanners are obd2. You need autoi enginuity or a snap on scanner. The obd2 will plug it but it reads nothing. Ford diesels do not coincide with standar code readers. Muyt be 7.3 specific
Reply With Quote Quick reply to this message
  #7  
Old 04-18-2011, 01:07 PM
Compression Ignition Addict
 

Join Date: Mar 2011
Location: Oil patch, North Dakota
Posts: 664
Thanks: 0
Thanked 5 Times in 5 Posts
Feedback Score: 0 reviews
I know the plugs can kinda burn off on the inside, besides that just look for the basics, frayed wires or loose connections or discolored spots where it may have gotten hot or where something has been rubbing. you may have to pull off some of the factory wrapping and protectors to see in some spots. if everything looks clean and nice put it back together and try something else. another thing you can try is the valve cover gaskets. they can short out inside themselves you could use an ohm meter to check them too while you got everything apart.
Reply With Quote Quick reply to this message
  #8  
Old 04-18-2011, 04:03 PM
Powerstroke.org Rookie
 

Join Date: Apr 2011
Posts: 9
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Great Melmount and Cowboy.

I'll look into both.
Reply With Quote Quick reply to this message
  #9  
Old 04-18-2011, 06:18 PM
Compression Ignition Addict
 

Join Date: Dec 2007
Posts: 2,865
Thanks: 6
Thanked 1 Time in 1 Post
Feedback Score: 2 reviews
get the code checked first, might very well tell you where to look for the problm
Reply With Quote Quick reply to this message
  #10  
Old 04-18-2011, 06:44 PM
Premium Member
 

Join Date: Mar 2011
Location: AUBURNDALE, FL
Posts: 27
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
check the icp sensor for oil in the plug if there is oil in it its bad and will send bad info to the pcm
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 10:33 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