Unconvention diagnostic methods, Chugging 7.3. - 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 11-07-2012, 04:19 AM
Member
 

Join Date: Apr 2012
Posts: 58
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Unconvention diagnostic methods, Chugging 7.3.

I have a 2001 F250 with a 7.3. It has over 200K miles on it, I just bought it this spring so I know nothing about the injectors.

When If first starts after sitting overnight it will rev up and down a couple times and then quit, after the second attempt it will start and keep running. But it has puffs of white smoke coming out of the exhaust until it's warm.

Now here is the reason for my Thread Title....... If I put my hand in front of the exhaust after it starts (white smoke still present) I can feel an inconsistent pulse, like I have a cylinder that isn't doing its job, do you know what I mean or do I sound like a moron. I checked the glow plugs and they all work. I'm thinking I have an injector going bad, I want to be sure, don't want to spend a day and 2000 dollars on a whim.

Also, where can I buy and what brands can I trust?
Should I find out what cylinder is bad and just do one, or do you do all at the same time?
Thanks
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 11-09-2012, 08:55 AM
Powerstroke.org Fanatic
 

Join Date: Apr 2012
Location: Fergus Falls
Posts: 114
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
It could also be your under valve cover harness, if that goes bad it doesn't send power to your injectors which won't allow them to work. But I would say in your case its probably bad injectors. Have a cylinder contribution test done, and you can find out which injectors are bad. You can just replace the bad injectors which is not the recommended way, if you can afford it replace all 8. You'll be much better off!
Reply With Quote Quick reply to this message
  #3  
Old 11-09-2012, 09:12 AM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,063
Thanks: 0
Thanked 13 Times in 13 Posts
Feedback Score: 0 reviews
ICP or IPR possibly. What oil and how many miles on it?

I made my Samsung SGH-I997 send this.
Reply With Quote Quick reply to this message
  #4  
Old 11-09-2012, 09:47 AM
Member
 

Join Date: Apr 2012
Posts: 58
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I had a cylinder contribution test done, it came up with cylinder 8 as a fault, but the mechanic told me that number 8 always has that fault because of the long lead injector. Maybe I'll have it retested.

I run rotella 15-40 It only has like 1000 miles on it at most. I did notice that the oil level is a little high. But it doesn't look contaminated, at least not with coolant. what would it look like if fuel were leaking into the oil? or isn't that even possible?
Thanks
Reply With Quote Quick reply to this message
  #5  
Old 11-09-2012, 10:23 AM
Compression Ignition Addict
 

Join Date: Oct 2012
Location: northshore
Posts: 168
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
it would stink like diesel and be significantly thinner.
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 08:48 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