1996 7.3- intermittent hard start/no 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 03-05-2007, 03:26 PM
Powerstroke.org Rookie
 

Join Date: Jan 2007
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
1996 7.3- intermittent hard start/no start

Truck is a 96 7.3 with 5 speed. Just came back from dealer, where all four engine harnesses and both valve cover gaskets were replaced, oil was changed. I replaced fuel filter withing the last 500 miles and CPS about two weeks ago.
Dealer says they checked glow plugs and they were OK, but they have been seeming sort of weak to me. Sometimes I have to cycle the key twice to get it going in colder weather. I only drive it maybe 3-4 times during the winter, other than that it sits.
Every once in a while it just won't start. Example- started it at 8:00 Sunday morning, it was about 18 degrees out. It took a few tries, but it started fine. Block heater was not plugged in. Today, it was close to 50 during the warm part of the day and truck baked all day in the sun. I tried to start it at about 3pm, with no luck. Plugged it in and tried about once a half hour until it finally fired at around 6:30.
When I release the key after cranking it I get smoke from around where the head pipe is clamped to the turbo. This whole process has happend a couple times before. It seems like if I just let it sit for an hour or two it's fine.
Basically it feels like a carbureted gas engine that's flooding- can that happen on a diesel? Don't have a lot of experience with them. Is it an issue of the glow plugs being weak?
Thanks in advance,
Andy
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 03-05-2007, 03:33 PM
duct tape & zip ties

 

Join Date: Jul 2006
Location: Willis, MI
Posts: 10,759
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via Yahoo to bigcountrysg
For the block heater to work you need to have it plugged in for a minimum of 3 hours before starting. By the way it sounds it maybe the glowplugs or the glow plug controller not working properly. You can check the glow plug controller with a volt meter. Just turn the key on and check the posts on the glow plug controller for 12 volts.
Reply With Quote Quick reply to this message
  #3  
Old 03-05-2007, 03:50 PM
Compression Ignition Addict
 

Join Date: Jan 2007
Location: Santa Rosa, CA
Posts: 2,026
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
i had the same problems years ago. ended up being that batteries were dead. didn't have enough juice to operate the glow plugs.
Reply With Quote Quick reply to this message
  #4  
Old 03-06-2007, 03:00 AM
Powerstroke.org Rookie
 

Join Date: Jan 2007
Posts: 16
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Thanks for the replies. I knew that about the block heater but figured I'd mention it anyway. I didn't think that was what made it start. Every time this happens it seems like if you just let it sit for a while it will fire up.
The dealer replaced one battery as well, thought it was weird they didn't replace them as a pair but what do I know
I will check the glow plug system one of these days, as of now the problem is so intermittent that it's not too much of a hassle and would probably be hard to track down anyway.
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 03:31 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