Problems Starting a 7.3L - 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 02-08-2013, 11:53 PM
Powerstroke.org Rookie
 

Join Date: Feb 2013
Posts: 2
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Problems Starting a 7.3L

Hi i have a 1999 ford F250 superduty powerstroke turbo diesel truck with 124,0000 miles. Every morning i've had hard starting problems, i wait for the wait to start light to turn off and then i go to start it but it just cranks over but it won't fire up then i spray alittle starting fluid and it will fire up. Sometimes i get it to start without the spray but it will crank over a few times before it fires up. Can someone give me some advice on how to possibly get it to start right up please.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 02-09-2013, 04:45 PM
Compression Ignition Addict
 

Join Date: Oct 2011
Location: Chico, California
Posts: 3,490
Thanks: 17
Thanked 100 Times in 95 Posts
Feedback Score: 0 reviews
first off, starting fluid is a horrible idea.
i would check the glow plugs and or the glow plug relay.
also you have a block heater, if its never been used its tied up above the front drivers side tow hook, against the radiator.
their is a thread on here that talks about starting issues on 7.3's
Reply With Quote Quick reply to this message
  #3  
Old 02-11-2013, 09:42 PM
Powerstroke.org Rookie
 

Join Date: Oct 2009
Posts: 25
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I had the same problem. Plugged in or not. Old diesel mechanic friend of the families told me to get the truck up to temp, turn off the ignition and add 2 quarts of diesel to the crank case. Start the truck back up and just let it idle for 10 minutes. After that was done change the oil and filters. He said he likes Mobil synthetic 0-40 for the cold weather.

I have not had a problem since even with temps being in the negatives.
Reply With Quote Quick reply to this message
  #4  
Old 02-11-2013, 09:46 PM
Winning DUHHH


 

Join Date: Sep 2010
Location: Sunrise Beach, MO
Posts: 2,357
Thanks: 0
Thanked 10 Times in 10 Posts
Feedback Score: 0 reviews
Ill give 10 bucks your Glow Plug Relay is not working..Check both terminals up to 120 seconds after you first turn the key on. best to do with 2 people, so your not rushing if you dont know what your doing. You should have batt voltage on one side, and a 1-2 V drop on the other..

Where are you located?
Reply With Quote Quick reply to this message
  #5  
Old 02-12-2013, 06:02 PM
Member
 

Join Date: Aug 2010
Location: Ludlow Falls, OH
Posts: 80
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by jbm21 View Post
i wait for the wait to start light to turn off and then i go to start it but it just cranks over but it won't fire up.
When the light goes out it means the glow plugs are up to temp. They stay on for 90 to 120 seconds after that to heat the cylinder. I count to 45 or so after the light goes out if it is really cold. If it is around freezing I count to 15 or 20 before cranking.

I had the same issue and it was 4 of the 8 glow plugs did not work. They are not hard to change. I did the relay and wiring harness under the valve cover while I was in there too. I am betting you are not waiting long enough or you glow plugs (some or all) are not working properly.
Reply With Quote Quick reply to this message
  #6  
Old 02-12-2013, 07:47 PM
Behavior Modificationist

 

Join Date: Dec 2011
Location: Charlottesville, VA
Posts: 1,256
Thanks: 13
Thanked 27 Times in 26 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by jbm21 View Post
i spray alittle starting fluid and it will fire up
Starting fluid???

Read these/Google more reasons why to not use starting fluid:
This is a high powered website created just for Ford Diesel and Powerstroke enthusiasts. Older Ford 6.9L and 7.3L International or IDI owners are also welcome - Search Results for Starting Fluid BAD
Reply With Quote Quick reply to this message
  #7  
Old 02-18-2013, 06:24 AM
Powerstroke Junkie


 

Join Date: Aug 2006
Location: Mayberry, NC
Posts: 8,309
Thanks: 0
Thanked 40 Times in 9 Posts
Feedback Score: 0 reviews
Follow the write up that I wrote at the top of this section. Could also be weak batteries, if they drop below 11 volts while cranking replace both with proper sized batteries. I just had this issue with my sons truck in ND in -54 degrees. Batteries were dropping to 9.6 volts.
Reply With Quote Quick reply to this message
  #8  
Old 02-18-2013, 02:42 PM
Member
 

Join Date: Feb 2013
Posts: 52
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
+1 on checking batteries before other stuff. Side note on testing batteries.... always make sure to isolate the batteries for testing, disconnect them so they can't bleed over. My friend asked his firestone shop he uses for service to test his batteries who said they were A-ok only to continue having trouble starting in spite of good glow plugs and relays and proper fuel treatment. He retested them himself to find one was kaput. Replaced batteries and all is well. turned out firestone tested them without isolating... so they were testing for single battery strength off two batteries...
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 02:28 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