Ford Truck Enthusiasts Forums
Diesel
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
Glow plug controller??

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

Glow plug controller??

Reply Subscribe

Search this Thread

Old

Jan 31, 2009 | 11:53 AM

#1

RP27G8G

Thread Starter

|

Senior User

Joined: Feb 2006

Posts: 250

Likes: 0

Glow plug controller??

I don't believe my GPC is working since I can't hear it cycle and the truck is almost impossible to start when cold but is fine when plugged in. I did bypass the two power wires around the plastic connector so I know I have good power. Is there a way to test the controller or solenoid? If it's bad do I just replace the solenoid or the whole controller? Thanks in advance!

Reply

Old

Jan 31, 2009 | 04:50 PM

#2

RP27G8G

Thread Starter

|

Senior User

Joined: Feb 2006

Posts: 250

Likes: 0

Somebody has to know the answer to this...

Reply

Old

Jan 31, 2009 | 05:25 PM

#3

cstronko

Freshman User

Joined: May 2006

Posts: 28

Likes: 0

The solenoid is easy. If it is working it should power to the glow plug harness side when the controller activates. I'm not sure on the controller. I bypassed mine and went to a switch. It is easy and the diagram is on this site if you search it. Just be careful not to hold the switch more than 5 -7 seconds. You do not want to burn the glow plugs out. There is a ton if info on this topic on the site. All you need to do is search glow plugs under the 6.9 topic.

Reply

Old

Jan 31, 2009 | 11:03 PM

#4

91f2504x4

Senior User

Joined: Oct 2003

Posts: 247

Likes: 1

From: KY

Quote:

Originally Posted by RP27G8G

I don't believe my GPC is working since I can't hear it cycle and the truck is almost impossible to start when cold but is fine when plugged in. I did bypass the two power wires around the plastic connector so I know I have good power. Is there a way to test the controller or solenoid? If it's bad do I just replace the solenoid or the whole controller? Thanks in advance!

What year is your truck? You can start by checking to make sure that one of the big contacts has constant 12v going to it, then depending on which controller you have, you can excite the solenoid and make sure that the other big contact has 12v. If you are getting current there, then you can check to make sure that you are getting current to the glow plugs connectors, I would also check the ground for the glow plug controller. Check those few things and then post back with what you have found.

Reply

Old

Feb 1, 2009 | 06:00 PM

#5

RP27G8G

Thread Starter

|

Senior User

Joined: Feb 2006

Posts: 250

Likes: 0

Thanks guys!! I'll check the connections and voltage. I have read there is a ton of amperage going through those wires. My guess is the constant 12v is key on only. I'll check and post back.

Reply

Reply Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

2002 f350 cold starting problems

chaoticghost

1999 - 2003 7.3L Power Stroke Diesel

23

Mar 15, 2017 05:23 PM

New 2001 F250 Owner Here... Lot's Of Problems. 4x4 Won't Engage, No Cruise Control, Please Help!!!!!

wick001

1999 - 2016 Super Duty

7

Apr 21, 2014 08:20 PM

Its that time of year

jbworm20

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

1

Sep 26, 2011 08:37 PM

alternator harness question and switching to 3G alternator

strokin'_tatsch

1987 - 1996 F150 & Larger F-Series Trucks

2

Apr 18, 2010 06:41 PM

smoking glowplug controller

Fordhound

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

2

Apr 5, 2004 10:23 PM

Tags

bypass, controller, glow, plug

Reply Share

First
Prev
1 / 1
Next
Last

All times are GMT -5. The time now is 01:24 PM.