GP Controller Question
Thread Starter
|
Elder User
Joined: Jan 2012
Posts: 954
Likes: 0
From: Viva Las Vegas
GP Controller Question
So I replaced the GP controller on my new truck (what a pain to get at) and I noticed something odd, might be normal for these.
After the wait to start light goes off it will cycle the GPs at a rate of about 1 second off 1 second on for about 10 seconds. Does this if I start the engine of not.
Engine starts and runs great, just thought this was odd.
Read through the sticky and didn't see a reference to this, but that is a huge thread and I may have missed it.
After the wait to start light goes off it will cycle the GPs at a rate of about 1 second off 1 second on for about 10 seconds. Does this if I start the engine of not.
Engine starts and runs great, just thought this was odd.
Read through the sticky and didn't see a reference to this, but that is a huge thread and I may have missed it.
Post Fiend
Joined: Feb 2009
Posts: 8,005
Likes: 7
From: Ottawa, Ontario
What year is your truck? The older ones (83-86) those was normal to see the light come on and off for about 10 seconds after the engine had been started.
The newer system 87+ you should hear clicking, witch is cycling the glow plugs after the engine is running. This is to smooth out the engine, and make sure it keeps running, especially in colder temps.
The newer system 87+ you should hear clicking, witch is cycling the glow plugs after the engine is running. This is to smooth out the engine, and make sure it keeps running, especially in colder temps.
Thread Starter
|
Elder User
Joined: Jan 2012
Posts: 954
Likes: 0
From: Viva Las Vegas
What year is your truck? The older ones (83-86) those was normal to see the light come on and off for about 10 seconds after the engine had been started.
The newer system 87+ you should hear clicking, witch is cycling the glow plugs after the engine is running. This is to smooth out the engine, and make sure it keeps running, especially in colder temps.
The newer system 87+ you should hear clicking, witch is cycling the glow plugs after the engine is running. This is to smooth out the engine, and make sure it keeps running, especially in colder temps.
I assumed it was normal as the old controller and the new one both do the same thing.
Thread Starter
|
Elder User
Joined: Jan 2012
Posts: 954
Likes: 0
From: Viva Las Vegas
Also while doing the controller I noticed some fuel in the recesses of the intake manifold. Is this caused by leaking fuel return lines?
I am going to replace the injectors in a few weeks and will replace the return lines at the same time if this is the cause or should I just not worry about the injectors and replace the return lines since the truck runs great?
The truck is garaged and starts fine right now, I don't know how it would start if left out of the garage though.
I am going to replace the injectors in a few weeks and will replace the return lines at the same time if this is the cause or should I just not worry about the injectors and replace the return lines since the truck runs great?
The truck is garaged and starts fine right now, I don't know how it would start if left out of the garage though.
Thread
Thread Starter
Forum
Replies
Last Post
Justin West
1987 - 1996 F150 & Larger F-Series Trucks
0
Mar 19, 2018 08:41 PM
Byrd.Dog
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
10
Aug 30, 2015 07:26 AM
Fourwheelinj1
Pre-Power Stroke Diesel (7.3L IDI & 6.9L)
8
Oct 22, 2007 09:51 PM
