ROUGH IDLE HELP!! - Ford Powerstroke Diesel Forum

 
LinkBack Thread Tools Display Modes
post #1 of 10 Old 12-23-2011, 05:08 PM Thread Starter
Compression Ignition Addict
 
JD_MILLS's Avatar
 
Join Date: Apr 2011
Posts: 505
Thanks: 5
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
ROUGH IDLE HELP!!

Just got my truck back together after putting arp studs in.. now its hard to start and idle's rough almost like its missing. checked connections to injectors several times. still haven't got it figured out. it wouldnt start at first then i took the driver side valve cover off took the short stand pipe out of the front of the oil rail and turned the motor over until i had oil coming out it. put it all back together and it started now its just hard to start and idles rough. so please help. thanks in advance


2008 f-250 LARIAT, SCT LIVEWIRE, S&B CAI, 8" MBRP STACK
JD_MILLS is offline  
post #2 of 10 Old 12-23-2011, 05:53 PM
Banned
 
Join Date: May 2009
Location: (518) on the boarder of MA+CT
Posts: 1,023
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Send a message via AIM to PowerstrokeTech82787
Couple quick questions for ya.
1. Did you clean the cylinders out good? Vacuumed the coolant/oil out?
2. Did you change the oil before you started it?
3. Did you change the oil cooler and screen?

After all you did have the hpo system open, it will take a good romp to get the air purged out of it. let it idle for a while, and take it out for a few wide open runs and it should improve. and after i have done head gaskets i dont ever remember any of them firing right up and running smooth the first time after re-assembly. so dont be nervous.

If it doesnt clear up, make sure the ficm is fully connected. connectors fully seated.
PowerstrokeTech82787 is offline  
post #3 of 10 Old 12-23-2011, 07:20 PM Thread Starter
Compression Ignition Addict
 
JD_MILLS's Avatar
 
Join Date: Apr 2011
Posts: 505
Thanks: 5
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Its having a problem with cylinder #5 has no power and rolling grey smoke. im also getting smoke out of the passenger side valve. coming out the oil fill tube. and i pulled the short tube out of the hp oil rail and let it turn over until oil came out. im pretty sure its not an injector.


2008 f-250 LARIAT, SCT LIVEWIRE, S&B CAI, 8" MBRP STACK
JD_MILLS is offline  
post #4 of 10 Old 12-23-2011, 09:41 PM Thread Starter
Compression Ignition Addict
 
JD_MILLS's Avatar
 
Join Date: Apr 2011
Posts: 505
Thanks: 5
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
Well problem solved #4 cylinder bent exhaust pushrod. new question anyone know why that happened?


2008 f-250 LARIAT, SCT LIVEWIRE, S&B CAI, 8" MBRP STACK
JD_MILLS is offline  
post #5 of 10 Old 12-24-2011, 08:27 AM
Compression Ignition Addict
 
Join Date: Dec 2008
Location: port arthur texas
Posts: 4,222
Thanks: 1
Thanked 62 Times in 58 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Ok did you do the studs because of a problem or just as a preventive up grade.
If you were haveing head/gasket problems you may have gotten coolant on top that cylinder and nearly hydro locked, since liguid doesn't compress something has to give, you probly had that yalve partially open and it bent the valve or the push rood gave enough and saved the valve. Hope yall checked the valve for free movement before ya buttoned her up.


Lord I shall lead them to the water but I will not try to make them drink
dannyboy950 is offline  
post #6 of 10 Old 12-24-2011, 08:27 PM Thread Starter
Compression Ignition Addict
 
JD_MILLS's Avatar
 
Join Date: Apr 2011
Posts: 505
Thanks: 5
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
yes i checked everything. it wasn't hydro locked. was running fine before i tore it down. only logical thing i can come up with is the cam had the rod at its highest point and when i bolted it back down it bent it. got a new one today and its running great.


2008 f-250 LARIAT, SCT LIVEWIRE, S&B CAI, 8" MBRP STACK
JD_MILLS is offline  
post #7 of 10 Old 12-25-2011, 06:50 AM
Powerstroke Techie

 
justinmix's Avatar
 
Join Date: May 2011
Location: Frederick MD.
Posts: 1,975
Thanks: 0
Thanked 10 Times in 10 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Quote:
Originally Posted by JD_MILLS View Post
yes i checked everything. it wasn't hydro locked. was running fine before i tore it down. only logical thing i can come up with is the cam had the rod at its highest point and when i bolted it back down it bent it. got a new one today and its running great.
This is probably what happened. The manual tells you to put the dampner dowel pin at 6 o'clock so that no pistons are at TDC when bolting down the rockers.
justinmix is offline  
post #8 of 10 Old 12-25-2011, 08:33 AM
Powerstroke Techie

 
Join Date: Nov 2010
Location: South Fayette/Pittsburgh PA
Posts: 5,825
Thanks: 33
Thanked 143 Times in 129 Posts
Mentioned: 0 Post(s)
Quoted: 13 Post(s)
Garage
Feedback Score: 4 reviews
it's also a good idea to spin the engine over by hand after the rockers are torqued down

-Matt

Ford Senior Master Tech

2015 F-250 XLT 6.7L

2006 F-250 6.0L SOLD
sinner6.0L is offline  
post #9 of 10 Old 12-25-2011, 04:09 PM Thread Starter
Compression Ignition Addict
 
JD_MILLS's Avatar
 
Join Date: Apr 2011
Posts: 505
Thanks: 5
Thanked 2 Times in 2 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
yeah i know that its supposed to be at 6'oclock. i've read multiple books on this truck had several ppl tell me things that needed to be done. but it only bent one so its all okay running great now.


2008 f-250 LARIAT, SCT LIVEWIRE, S&B CAI, 8" MBRP STACK
JD_MILLS is offline  
post #10 of 10 Old 12-25-2011, 05:28 PM
Powerstroke Techie

 
justinmix's Avatar
 
Join Date: May 2011
Location: Frederick MD.
Posts: 1,975
Thanks: 0
Thanked 10 Times in 10 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Cool, just trying to answer your question. Glad it's running good now.
justinmix 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