1986 F250 Glow Plug system light does not come on illuminate. - Diesel Forum - TheDieselStop.com
6.9L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 6.9 Liter In-Direct Injection Navistar engines.

 
LinkBack Thread Tools Display Modes
post #1 of 2 (permalink) Old 07-06-2019, 05:56 PM Thread Starter
Senior Member
 
Join Date: May 2005
Location: Petaluma, CA
Posts: 252
My Photos: (0)
Feedback Score: 0 reviews
1986 F250 Glow Plug system light does not come on illuminate.

Hi. On my 1986 F250 6.9 AT, when I turn the key to crank/start, the glow plug light does not come on. (The glow plugs are NOT being energized, long crank to start).

I installed a new Glow Plug Controller and Glow Plug Relay, with no correction. I can hear the glow plug relay, "clicking" on and off, as if it it being cycled by a timer.

I have owned the truck for approx. 10 years and this is a sudden onset,new problem.

I have NO interest is converting to a manual (push button ) system. I have the 1985 Ford engine manual, but it only has a glow plug wiring diagram, no diagnostic "tree".

Thanks.

God Bless America!

2014 Chevrolet VOLT
2000 Ford Excursion 4X4 PSD Limited
1986 Ford F250 4x4 Supercab, long bed , 6.9L/AT
2001 "MagneticRed" Corvette Coupe
1979 Pontiac Y84 "Bandit" Trans Am
1988 Lincoln Mark VII LSC
1996 Chevrolet Impala SS Dark Cherry Metalic
1996 Chevrolet Impala SS Black
1995 Buick Roadmaster Sedan

Last edited by mikeceli; 07-06-2019 at 08:26 PM.
mikeceli is offline  
Sponsored Links
Advertisement
 
post #2 of 2 (permalink) Old 07-09-2019, 08:10 PM Thread Starter
Senior Member
 
Join Date: May 2005
Location: Petaluma, CA
Posts: 252
My Photos: (0)
Feedback Score: 0 reviews
Well, looks like the FSM shows 2 wires to the Glow Plug Controller should be hot w/ ignition on or start. red/litght green and pink / black. I'll have to check them tomorrow. Any other ideas, please chime in.

God Bless America!

2014 Chevrolet VOLT
2000 Ford Excursion 4X4 PSD Limited
1986 Ford F250 4x4 Supercab, long bed , 6.9L/AT
2001 "MagneticRed" Corvette Coupe
1979 Pontiac Y84 "Bandit" Trans Am
1988 Lincoln Mark VII LSC
1996 Chevrolet Impala SS Dark Cherry Metalic
1996 Chevrolet Impala SS Black
1995 Buick Roadmaster Sedan
mikeceli is offline  
Sponsored Links
Advertisement
 
Reply

  Diesel Forum - TheDieselStop.com > Ford Diesels > 6.9L IDI Diesels (Not Power Strokes)

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Diesel Forum - TheDieselStop.com 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:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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

 
For the best viewing experience please update your browser to Google Chrome