Go Back   Ford Truck Enthusiasts Forums > Diesel > Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
Sign in using an external account
Register Forgot Password?

Pre-Power Stroke Diesel (7.3L IDI & 6.9L) Diesel Topics Only

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community 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 fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!

LinkBack Thread Tools Search this Thread
  #1 (permalink)  
Old 03-20-2010, 07:35 AM
Paradise_Cowboy Paradise_Cowboy is offline
New User
Join Date: Mar 2010
Posts: 1
Paradise_Cowboy is starting off with a positive reputation.
Angry how to test glow plugs?

Hi every one,

I was hoping that someone might be able to help me out with this little problem i may have or have some suggestion on what it could be?

when I start it in the morning after i wait 8-10 sec it starts right up but seems to run very ruff and and has a white/ gray smike to and has a lack of power but id i let it idle for 10-15 min or go up the road a block or two the smoke is gone and is running just fine and does this anytime i let it sit for a bit i was thinking it might be the glow plug or plugs and have not idea on how to test them to find out don't want to replace them all or could it be the "O"ring sel around one of the enjectors and have no idea on where to srat their either or how test them to figure out which one it might be and this is on a 1992 ford F250 7.3 non-turbo diesel I am at a point to where I am lost on what to do and their are no diesel shops in my area except the dealships and would rather pass on them and what they charge just to test it out and whant to see if their is any what i can do this myself

thank for any advice anyone may have other than it's a FORD...
Reply With Quote
  #2 (permalink)  
Old 03-20-2010, 08:06 AM
tabascom16 tabascom16 is offline
Senior User
Join Date: Apr 2007
Location: Salisbury, PA
Posts: 222
tabascom16 is starting off with a positive reputation.
An Ohm-meter. Or I have tested them using a peice of wire and needle noze pliers to hold them directly to the battery terminals out in the open and see if they get red hot.

Glow plugs just get you goin. The chamber is warm enough after about 10-15 sec not to need them.

Retarded timing will blow white smoke. Things do wear over time and need ot be adjusted.
Reply With Quote
  #3 (permalink)  
Old 03-20-2010, 08:42 AM
JHoffman93's Avatar
JHoffman93 JHoffman93 is offline
Senior User
Join Date: Feb 2009
Location: Westfield, MA
Posts: 372
JHoffman93 is starting off with a positive reputation.
There are two very good post about how to test glow plug systems here on the forum. They are to two first posts on the page take a gander at them, they will probably answer all your questions about the glow plug system. I would agree with tabascom16 however. If the truck starts with no problems after it has been cold soaked then your glow plugs are working just fine.
Aircraft Mechanic, Gulfstream Aerospace Service Center, Westfield, MA. 1993 F250 Ext. cab IDI 2x4 with a 5 spd manual.
Reply With Quote
  #4 (permalink)  
Old 03-20-2010, 09:35 AM
starmilt starmilt is offline
Post Fiend
Join Date: Oct 2007
Location: Faibanks Ak.
Posts: 10,503
starmilt has a very good reputation on FTE.starmilt has a very good reputation on FTE.starmilt has a very good reputation on FTE.
Is your cold start advance working, along with the fast idle solonoid. they are controlled by the same temp switch. A leaky injector can also cause this, as can a small amount of air intrusion. Test your glow plugs first and get back to us.
absolutely no dodges.
to many fords to list.
one town car.sold
If it breaks because of my advice
you can keep both halves
Reply With Quote
Old 03-20-2010, 09:35 AM

Go Back   Ford Truck Enthusiasts Forums > Diesel > Pre-Power Stroke Diesel (7.3L IDI & 6.9L)

69, 69l, 73, 73l, f250, ford, fordf250, glow, idi, liter, plug, plugs, replace, test, testing

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On
Forum Jump

All times are GMT -5. The time now is 05:43 AM.

Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.5.2 ©2010, Crawlability, Inc.
Advertising - Terms of Use - Privacy Statement - Jobs
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. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup