02 7.3 cold start (not glow plugs, relays or timer) - 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 12-20-2012, 05:14 PM
Powerstroke.org Rookie
 

Join Date: Dec 2012
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
02 7.3 cold start (not glow plugs, relays or timer)

I have an '02 7.3 thats been great, runs great, but starting this year wont turn over without many tries when colder. Plugged in, it fires right up. Glow plug relay checks out, glow plugs check out, hi pressure oil system checks out... not quite sure what to look for. I've hooked up the computer and everything appears fine. My next step is to check the fuel pressure, but believe that isnt the problem. Any ideas? Has anyone seen this before? I've read that faulty injectors might cause this at lower temps, but want to dispel any other possible faults before i drop that kind of DOH! Ha! But, seriously, any recommendations are greatly appreciated.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 12-20-2012, 05:17 PM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: Nacogdoches, TX
Posts: 11,066
Thanks: 0
Thanked 14 Times in 14 Posts
Feedback Score: 0 reviews
What oil you use?

I made my Samsung SGH-I997 send this.
Reply With Quote Quick reply to this message
  #3  
Old 12-20-2012, 05:18 PM
Powerstroke.org Rookie
 

Join Date: Dec 2012
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
5-40 amsoil
Reply With Quote Quick reply to this message
  #4  
Old 12-24-2012, 12:33 PM
Powerstroke.org Rookie
 

Join Date: Dec 2011
Posts: 4
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
but starting this year wont turn over without many tries when colder
Do you mean the engine won't turn over, or it turns over but doesn't start right away.
Let's assume you mean the engine doesn't start right away. You have already eliminated
many faults but I don't see that you checked the batteries or starter.These engines need to turn 600rpm to start. Both batteries and starter need to be in top notch condition. The clue here is an ok start when plugged in and during warmer weather. I had the same problem 2 years ago and like you I eliminated glow plugs, relay,etc. After jump starting and plugging in during cold weather I replaced the batteries. Problem solved. Even if just 1 battery is weak you must replace both of them. This year I noticed starting was getting harder( the engine seemed to be turning over slower). Batteries and alternator checked ok but the starter was weak.Replacing the starter solved the problem.
Conclusion: Make sure all ground connections are clean and tight. Good connections on the positive side also. Batteries and starter need to be in good condition. Alternator needs to be checked. There can be 1 diode out in the rectifier and the alt. will show it's charging but the current won't keep up with the demand this results in the batteries not being fully charged. The glow plugs use a lot of current, not leaving enough to spin the starter fast enough. Sorry for such a long post but I wanted you to understand the reason why a good electrical system is key. Eliminate the simple things first. Hope this works out for you.
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 11:34 PM.


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