Running rough? - Ford Powerstroke Diesel Forum

 
LinkBack Thread Tools Display Modes
post #1 of 9 Old 04-17-2012, 03:36 PM Thread Starter
Powerstroke.org Fanatic
 
Join Date: Feb 2009
Posts: 148
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Running rough?

My son has a '95 7.3L PSD and we've had few problems with it overall. He called from college the other day to tell me that the truck was running really rough and was missing and he couldn't get any speed. He pulled into a K-mart, killed the truck, started it back and it ran fine for a few minutes then started doing it again. I trailered the truck home and ran it a few times around here. Mostly it ran fine, but several times it did run really rough and I could detect a dead miss and rough idle. I assumed it may be the FICM, but decided to pull codes instead. My Snap-On scanner with the KOEO mode pulled only one code: P1111 System Pass. I pulled the memory codes and pulled a P1282 excessive ICP and a 1211 ICP pressure above/below normal. The FICM had been replaced years ago and I replaced the IPR as well, so I assume these codes may go back to there. Regardless, I cleared the codes and did both an KOEO and a KEOR test and pulled no code except the P1111 System Pass.

What is a P1111 anyway? Could it be that my problem may be something simple like bad diesel or dirty filters?
lmorgan is offline  
post #2 of 9 Old 04-18-2012, 02:57 PM Thread Starter
Powerstroke.org Fanatic
 
Join Date: Feb 2009
Posts: 148
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Does anyone know what a P1111 is?
lmorgan is offline  
post #3 of 9 Old 04-18-2012, 03:23 PM
Powerstroke.org Fanatic
 
Join Date: Jan 2008
Posts: 92
Thanks: 0
Thanked 3 Times in 3 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Check your fuel presure first. Shrader valve on the filter , should be 50-60 psi.

Your mechanical fuel pump in the valley of the engine could of just taken a dump. Same thing just happened to my 97.
swaan is offline  
post #4 of 9 Old 04-18-2012, 03:36 PM Thread Starter
Powerstroke.org Fanatic
 
Join Date: Feb 2009
Posts: 148
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Thanks! When your fuel pump went south, did you have a rough idle/run all the time or intermittenly? Sometimes this one will run great for awhile, then crap out on me.
lmorgan is offline  
post #5 of 9 Old 04-18-2012, 03:38 PM
Compression Ignition Addict
 
jesilvas's Avatar
 
Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,148
Thanks: 0
Thanked 27 Times in 25 Posts
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
Can be fuel pressure, can be high pressure oil, can be UVCHs, maybe even CPS but doubtful that's it.



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
jesilvas is offline  
post #6 of 9 Old 04-18-2012, 03:50 PM Thread Starter
Powerstroke.org Fanatic
 
Join Date: Feb 2009
Posts: 148
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Wouldn't the CPS, UVCH, and the HPOP all throw codes if they were bad?
lmorgan is offline  
post #7 of 9 Old 04-18-2012, 03:59 PM
Powerstroke.org Fanatic
 
Join Date: Jan 2008
Posts: 92
Thanks: 0
Thanked 3 Times in 3 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by lmorgan View Post
Thanks! When your fuel pump went south, did you have a rough idle/run all the time or intermittenly? Sometimes this one will run great for awhile, then crap out on me.
Yup, ran fine then when the demand for lots of fuel was there it would suck the filter housing dry then run really bad miss shake. If you let it idle it would catch up to it self then start running fine. But it just got worse and worse to the point I almost had to be towed home. New pump and she goes like a raped ape!!
swaan is offline  
post #8 of 9 Old 04-18-2012, 05:34 PM
Compression Ignition Addict
 
jesilvas's Avatar
 
Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,148
Thanks: 0
Thanked 27 Times in 25 Posts
Mentioned: 0 Post(s)
Quoted: 1 Post(s)
Feedback Score: 0 reviews
You'd hope they'd throw codes, and usually will, yes.



2000 F-350 Lariat Super Duty, Dually, CCLB, 7.3L
4R100, 2wd
330,000 + miles
jesilvas is offline  
post #9 of 9 Old 04-27-2012, 01:46 PM
Serving Our Country!
 
SoCalPwrStrk's Avatar
 
Join Date: Feb 2012
Location: Mira Loma, CA
Posts: 108
Thanks: 1
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
My truck did the same thing, it would run fine then start missing then wouldnt start at all, turned out to be the electrical connector to the IPR, i was getting the P1211 when trying to start.


"Big Truck" 1997 F-350 CC DRW 4x2 Cali model
Diamond Eye 3" dp to 5" straight pipe, DIY 6637 intake, Pillar gauges, 6.0 trans cooler, Intercooled, TS 6 pos. chip with TW Tunes, 1.0 Housing, Barder Billet Wheel, EBPV Delete

"Baby Truck" 1999 Ranger EC 5 speed 3.slow
Camburg Long Travel, Billit upper arms, Fox dual rate coilovers and double bypass in front, Deaver race pack w/ fox double bypass in rear, fiberglass fenders, 16x8 American Racing Mohave Wheels
SoCalPwrStrk is offline  
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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome