Hard start/extremely hard warm start. - 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 04-14-2013, 08:37 AM
Powerstroke.org Rookie
 

Join Date: Apr 2013
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Hard start/extremely hard warm start.

Ok, so I'm new here but I've done some lurking and reading I'm not a big Ford diesel guy I've been in the military for 6yrs and I'm a diesel mechanic with the Army so I have some general knowledge and some really useful tools.

2007 XLT crew cab 6.0L Auto-trans 153,xxx miles
So, here's the issue...I bought the truck a little over a month ago and when I went to buy it they said it hadn't been started in a while, so when we went to start it; the truck has a very hard start with some excess smoke which didn't seem off if it hadn't been started in a while. When I took the truck down the road it sputtered and jerked and acted a fool till it was warm about 10 minutes of Ohio winter driving, then it cleared up and ran fine! Since I purchased the truck its the same thing warms up and its fine...I tested the FICM and i get a constant 48v with koeoff and cranking test. Now yesterday I took my truck into work, and put it on the lift changed the oil and the fuel filter/separator filter. And, while I was looking just to see if I had any random oil leaks or anything I should be concerned with, on the drivers side where the engine meets the trans I found oil residue. I also plugged the truck up to our Solus Pro. and got a P2291

So, my question is, can all of these problems be caused by the STC fitting or do you think there are other underlying causes? The truck currently has no mods,no programmer, nothing changed from factory except usual wear and tear items.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 04-17-2013, 07:18 AM
Powerstroke.org Rookie
 

Join Date: May 2012
Location: Campbell river
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Almost sounds like injector stiction, because the 6 liter uses heui injectors the oil supply is vital. any oil imperfections can affect them. because of how the head is tilted (on a stock truck) when listening with a stelthascope the rear cylinders will sound worse as they collect more of these imperfections. I had a similar issue, ford quoted me for a full set of injectors.... that would fix the issue but not on my budget.
Reply With Quote Quick reply to this message
  #3  
Old 04-17-2013, 09:55 AM
Powerstroke.org Rookie
 

Join Date: Apr 2013
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Well see while I was scanning I did a buzz test using the solid pro and it check good on all I went through and checked duty cycle of injectors and shut them down and turned them on one at a time to see if there was a big difference or if it was the same and there was a big different when any one was shut off. The only thing that leads me to believe its a leaking STC fitting is that there's a little oil coming off the back side of the engine area.
Reply With Quote Quick reply to this message
  #4  
Old 04-17-2013, 12:31 PM
Powerstroke.org Rookie
 

Join Date: May 2012
Location: Campbell river
Posts: 10
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
with the stc leaking you will see a decrease in oil pressure but if that was your issue you would see more of an issue when up to temp (thinner oil) not cold (higher pressure)
The duty cycle is checking the electrical integrity of the solenoids (but it sounds like you are doing a cylinder cut out test), with the injectors being indeifferent, its more likely a problem on the oil side of the injector.
Reply With Quote Quick reply to this message
  #5  
Old 04-18-2013, 01:43 PM
Powerstroke.org Fanatic
 

Join Date: Jul 2012
Location: Sacramento area
Posts: 135
Thanks: 2
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
You can try Rev-X or Archoil 9100, both of which have shown to have an effect on stiction. Look for a YouTube video, the sound of stiction is very distinctive and you will know if you have it.

I see in the title that you mentioned extremely hard warm starts. If the truck is having problems when completly warm or hot, STC is a possibility, especially if you can start if after 20 minutes or so.

Good Luck!
Reply With Quote Quick reply to this message
  #6  
Old 04-18-2013, 02:18 PM
Powerstroke.org Rookie
 

Join Date: Apr 2013
Posts: 8
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
take to ford to reprogram mine was hard starting ford just programmed it no probs since about 200 bones
Reply With Quote Quick reply to this message
  #7  
Old 04-22-2013, 12:41 PM
Powerstroke.org Rookie
 

Join Date: Apr 2013
Posts: 7
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by fuzzman View Post
You can try Rev-X or Archoil 9100, both of which have shown to have an effect on stiction. Look for a YouTube video, the sound of stiction is very distinctive and you will know if you have it.

I see in the title that you mentioned extremely hard warm starts. If the truck is having problems when completly warm or hot, STC is a possibility, especially if you can start if after 20 minutes or so.

Good Luck!
yes after about 20-30 minutes the truck will start back up and run fine I think I have a combination of 2 different issues but the rough running when cold is the least of my issues right now. the persistance of the truck not wanting to start when its warm is getting worse. So, I'm thinking either STC or Dummy plug/stand pipe. Is there any way to test to see if its the STC fitting?
Reply With Quote Quick reply to this message
  #8  
Old 04-22-2013, 01:00 PM
Powerstroke.org Fanatic
 

Join Date: Jul 2012
Location: Sacramento area
Posts: 135
Thanks: 2
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
do you have a monitor? that will help narrow things down a bit...
sounds fairly likely that you are looking at a problem with your STC. you can check for leaks with compressed air. you take out your ICP sensor and thread in a fitting to that spot to hook up an air compressor. then you run 100 psi or so of air through your engine and listen for air leaks. the location of the sound helps you narrow down the location of the leak...

valve cover area - injector orings, standpipes or dummy plugs
back under the turbo - hpop (high pressure oil pump) or STC

im pretty sure you can just tear it down and then apply air with things open and relly zero down on the real culprit.

do a search here for high pressure air test and you will get the idea.

with your background this shouldnt be to hard to handle!
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 04:42 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