Ford Enthusiast Unofficial Resource

Go Back   Ford Forum - Enthusiast Forums for Ford Owners > Ford Trucks, Ford Vans & Ford SUV's > Ford F-250 & Ford F-350
Sign in using an external account
Register Forgot Password?
Search


Welcome to Ford Forum!
Welcome to Ford Forum,

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!


Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 12-15-2011, 08:56 PM
Junior Member
 
Join Date: Dec 2011
Posts: 2
Unhappy 1995 Ford Truck F 250 4WD Pickup V8-7.3L DSL Turbo VIN F no start when cold or ...

my truck dose not start if its cold or if it has not started in more than 12hr dose any one have any sugestinons
Reply With Quote
  #2  
Old 12-16-2011, 12:14 AM
Hayapower's Avatar
Super Moderator
2005 Ford F-250
My Garage
 
Join Date: Jul 2006
Posts: 4,078
Default

Welcome to the site..

It 'will not' start cold, or hard to start meaning extended cranking time..
__________________
05 F250 C/C FX4 6.0
1969 Firebird Trans Am
2003 Hayabusa GSXR1300
Reply With Quote
  #3  
Old 12-18-2011, 12:15 AM
Junior Member
 
Join Date: Dec 2011
Posts: 2
Unhappy

if it is cold will not start untill i have heated it up with propain heaters
if it has been more than 12hrs then i have to refill the upper oil sump and use starter fluid and be getting a jump start at the same time to support the extended cracking time required were talking like 2 to 3hrs of cranking
Reply With Quote
  #4  
Old 12-18-2011, 12:05 PM
Hayapower's Avatar
Super Moderator
2005 Ford F-250
My Garage
 
Join Date: Jul 2006
Posts: 4,078
Default

2-3 hours or cranking!

The PSD's need to have a 'minimum' of 500lbs of high pressure oil to start. Almost sounds like you may have more than one issue though. Does it run good once its fires off? or does it stumble and misfire until it finally stabilizes at idle? If so, how long to correct? The early PSD have problems with the injector Orings bleeding, and the cold makes it worse to try and build to a starting pressure if leaking, more so on the engines with some time on them. Have they every been replaced/resealed? How many miles on the truck?

They are also known to fry the glow relay, glow plug circuits on the UVC (valve cover connections) harnesses connectors, glow pugs, and usually you can see a burn/buldge area on the outer most ends of the connector/s if their bad.


IPR regulator can cause a low high pressure oil problem, a weak HPOP pump, but what really needs to happen is to have the cranking pressure checked/verified either manually with a gauge, or can be checked with a DVOM at the ICP, or best viewed with a scan tool to see what the PCM is seeing. Same with a minimum cranking speed, if its not met, the IDM won't fire the injectors. You might try and unplug the ICP sensor (left front of the valley area near the v/cover) to bump up the cranking oil pressure. Might try the EOT sensor(Low/front of the HPOP) to extend the glow ON time if the system is in fact intact. See if there is any improvement in a start. Last, be carefull using fluid on a start assist, if the glow system 'is' working, it can flash back out of the intake..

But if the HPOP oil level empties after sitting, or if it can't build the minimum start pressure, the reason for the loss needs to be found.
__________________
05 F250 C/C FX4 6.0
1969 Firebird Trans Am
2003 Hayabusa GSXR1300
Reply With Quote
  #5  
Old 12-24-2011, 06:14 PM
Junior Member
 
Join Date: Dec 2011
Posts: 2
Default

I have a 91 7.3 with starting proplems took several changes to solve the problem. New glow plugs, enjector pump, glow plug relay, fuel pump, replacement of all fuel return lines, New batterys, engine heater, starter, etc. The glow plugs and glow plug relay made the most differance in warm weather. The enjector pump made another big differance. Then it was figured out that after setting for several hours that the pressure in fuel line was leaking off so then came the replacement of all fuel return lines and the fuel pump, seems the IH motor does not have a check valve to keep the pressure up, Got that information from the IH dealer, they said that they used the fuel pump to maintain the pressure. Hope some of this helps My truck runs like a million bucks now and each change made a differance in how and what proplems were left to figure out. Good luck with your project.
Reply With Quote
Old 12-24-2011, 06:14 PM
 
 
 
Reply

Tags
1995, 4wd, 73, cracking, diesel, f250, ford, forum, ip, oil, pick, pressure, slow, start, till, wont

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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


Advertising
Our Sponsors
Vendor Directory
New Sponsors
All times are GMT -5. The time now is 10:22 PM.

Internet Brands, Inc.


This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford is a registered trademark of the Ford Motor Company.

SEO by vBSEO ©2010, Crawlability, Inc.