GPR Bypass Switch
Freshman User
Joined: Aug 2010
Posts: 49
Likes: 0
This is a great Idea, If you had stated your purpose to begin with the thread wouldn't have gone so far haha, Oh well. The idea being: Stopping the GPR from firing when unnecessary(summer) this will save the GP's and the GPR... I think the idea of a manual GPR was a great idea until I realized what your end game was. brilliant.
New User
Joined: Sep 2012
Posts: 10
Likes: 0
From: West Greenwich, RI
Ok here is the picture of my setup.
I used the Intake Air Heater relay because I removed that heater element from the intake about three days after I brought the truck home and the relay was sitting there ready to be used and I was stuck in a campsite at 7000 feet with a truck that refused to start.
You can do the exact same setup with your glow plug relay as well.
What you need to do is to make a small jumper wire from the big post with the boot on it to the small post like I have in the picture. The red wire that goes from underneath the boot to the small post at the 7:00 o'clock position in the picture. That will supply power to the relay at all times even with the key switched off. The large post at the 4:00 o'clock position is the wiring that goes to the glow plugs.
the blue wire at the 2:00 o'clock position goes to a simple "momentary on" pushbutton switch that I mounted in the cab of the truck. Location is where ever you want to mount it. Mine is the pushbutton next to the steering column. You wire it from the post on the relay to one post on the switch, then from the other post on the switch go directly to ground.
That way you can directly control how long the glow plug relay is closed and the glow plugs are receiving power and heating up. You have to hold the button down, completing the circuit to ground which completes the control circuit for the glow plug relay.
I did this to increase glow plug life. You only really need them to get the engine going in the cold morning, but Ford has decided that they need to run those glow plugs for a lot longer than that and I don't want to have to replace glow plugs every other year.
I used the Intake Air Heater relay because I removed that heater element from the intake about three days after I brought the truck home and the relay was sitting there ready to be used and I was stuck in a campsite at 7000 feet with a truck that refused to start.
You can do the exact same setup with your glow plug relay as well.
What you need to do is to make a small jumper wire from the big post with the boot on it to the small post like I have in the picture. The red wire that goes from underneath the boot to the small post at the 7:00 o'clock position in the picture. That will supply power to the relay at all times even with the key switched off. The large post at the 4:00 o'clock position is the wiring that goes to the glow plugs.
the blue wire at the 2:00 o'clock position goes to a simple "momentary on" pushbutton switch that I mounted in the cab of the truck. Location is where ever you want to mount it. Mine is the pushbutton next to the steering column. You wire it from the post on the relay to one post on the switch, then from the other post on the switch go directly to ground.
That way you can directly control how long the glow plug relay is closed and the glow plugs are receiving power and heating up. You have to hold the button down, completing the circuit to ground which completes the control circuit for the glow plug relay.
I did this to increase glow plug life. You only really need them to get the engine going in the cold morning, but Ford has decided that they need to run those glow plugs for a lot longer than that and I don't want to have to replace glow plugs every other year.
anyone have the pics for this?
Freshman User
Joined: Nov 2017
Posts: 28
Likes: 0
Ok here is the picture of my setup.
I used the Intake Air Heater relay because I removed that heater element from the intake about three days after I brought the truck home and the relay was sitting there ready to be used and I was stuck in a campsite at 7000 feet with a truck that refused to start.
You can do the exact same setup with your glow plug relay as well.
What you need to do is to make a small jumper wire from the big post with the boot on it to the small post like I have in the picture. The red wire that goes from underneath the boot to the small post at the 7:00 o'clock position in the picture. That will supply power to the relay at all times even with the key switched off. The large post at the 4:00 o'clock position is the wiring that goes to the glow plugs.
the blue wire at the 2:00 o'clock position goes to a simple "momentary on" pushbutton switch that I mounted in the cab of the truck. Location is where ever you want to mount it. Mine is the pushbutton next to the steering column. You wire it from the post on the relay to one post on the switch, then from the other post on the switch go directly to ground.
That way you can directly control how long the glow plug relay is closed and the glow plugs are receiving power and heating up. You have to hold the button down, completing the circuit to ground which completes the control circuit for the glow plug relay.
I did this to increase glow plug life. You only really need them to get the engine going in the cold morning, but Ford has decided that they need to run those glow plugs for a lot longer than that and I don't want to have to replace glow plugs every other year.
I used the Intake Air Heater relay because I removed that heater element from the intake about three days after I brought the truck home and the relay was sitting there ready to be used and I was stuck in a campsite at 7000 feet with a truck that refused to start.
You can do the exact same setup with your glow plug relay as well.
What you need to do is to make a small jumper wire from the big post with the boot on it to the small post like I have in the picture. The red wire that goes from underneath the boot to the small post at the 7:00 o'clock position in the picture. That will supply power to the relay at all times even with the key switched off. The large post at the 4:00 o'clock position is the wiring that goes to the glow plugs.
the blue wire at the 2:00 o'clock position goes to a simple "momentary on" pushbutton switch that I mounted in the cab of the truck. Location is where ever you want to mount it. Mine is the pushbutton next to the steering column. You wire it from the post on the relay to one post on the switch, then from the other post on the switch go directly to ground.
That way you can directly control how long the glow plug relay is closed and the glow plugs are receiving power and heating up. You have to hold the button down, completing the circuit to ground which completes the control circuit for the glow plug relay.
I did this to increase glow plug life. You only really need them to get the engine going in the cold morning, but Ford has decided that they need to run those glow plugs for a lot longer than that and I don't want to have to replace glow plugs every other year.
I have a 15 amp momentary button, that enough?
New User
Joined: Dec 2019
Posts: 2
Likes: 0
picture not viewable
Ok here is the picture of my setup.
I used the Intake Air Heater relay because I removed that heater element from the intake about three days after I brought the truck home and the relay was sitting there ready to be used and I was stuck in a campsite at 7000 feet with a truck that refused to start.
You can do the exact same setup with your glow plug relay as well.
What you need to do is to make a small jumper wire from the big post with the boot on it to the small post like I have in the picture. The red wire that goes from underneath the boot to the small post at the 7:00 o'clock position in the picture. That will supply power to the relay at all times even with the key switched off. The large post at the 4:00 o'clock position is the wiring that goes to the glow plugs.
the blue wire at the 2:00 o'clock position goes to a simple "momentary on" pushbutton switch that I mounted in the cab of the truck. Location is where ever you want to mount it. Mine is the pushbutton next to the steering column. You wire it from the post on the relay to one post on the switch, then from the other post on the switch go directly to ground.
That way you can directly control how long the glow plug relay is closed and the glow plugs are receiving power and heating up. You have to hold the button down, completing the circuit to ground which completes the control circuit for the glow plug relay.
I did this to increase glow plug life. You only really need them to get the engine going in the cold morning, but Ford has decided that they need to run those glow plugs for a lot longer than that and I don't want to have to replace glow plugs every other year.
I used the Intake Air Heater relay because I removed that heater element from the intake about three days after I brought the truck home and the relay was sitting there ready to be used and I was stuck in a campsite at 7000 feet with a truck that refused to start.
You can do the exact same setup with your glow plug relay as well.
What you need to do is to make a small jumper wire from the big post with the boot on it to the small post like I have in the picture. The red wire that goes from underneath the boot to the small post at the 7:00 o'clock position in the picture. That will supply power to the relay at all times even with the key switched off. The large post at the 4:00 o'clock position is the wiring that goes to the glow plugs.
the blue wire at the 2:00 o'clock position goes to a simple "momentary on" pushbutton switch that I mounted in the cab of the truck. Location is where ever you want to mount it. Mine is the pushbutton next to the steering column. You wire it from the post on the relay to one post on the switch, then from the other post on the switch go directly to ground.
That way you can directly control how long the glow plug relay is closed and the glow plugs are receiving power and heating up. You have to hold the button down, completing the circuit to ground which completes the control circuit for the glow plug relay.
I did this to increase glow plug life. You only really need them to get the engine going in the cold morning, but Ford has decided that they need to run those glow plugs for a lot longer than that and I don't want to have to replace glow plugs every other year.
Cargo Master
Joined: Mar 2019
Posts: 2,907
Likes: 788
From: Kinnula,Finland
Here is a Crappy photo of my new 200amp constant,Trombetta style GP relay converted to manual,from a e350 van.
Positions:
Right constant 12v power
Left power to GPs+red wire goes to Led bulb in cab
Up jumper from constant 12v power
Down ground signal from the manual switch
Relay doesnt care which posts you use.
PCMs original signal wires is taped with red,not
so professionally,in the picture.
So,whenever i deside to use GPs i use the switch in cab that sends ground to the relay.
Reqular wire and switch is ok,when grounding only.
From the Led i can see that power really goes
to GPs..
Seein voltmeter drop and hearing click also
means power is going to GPs,i like the led mod.
Just spending my time when sitting in a toilet..
New User
Joined: Dec 2019
Posts: 2
Likes: 0
GPR Bypass Switch
Here is a Crappy photo of my new 200amp constant,Trombetta style GP relay converted to manual,from a e350 van.
Positions:
Right constant 12v power
Left power to GPs+red wire goes to Led bulb in cab
Up jumper from constant 12v power
Down ground signal from the manual switch
Relay doesnt care which posts you use.
PCMs original signal wires is taped with red,not
so professionally,in the picture.
So,whenever i deside to use GPs i use the switch in cab that sends ground to the relay.
Reqular wire and switch is ok,when grounding only.
From the Led i can see that power really goes
to GPs..
Seein voltmeter drop and hearing click also
means power is going to GPs,i like the led mod.
Just spending my time when sitting in a toilet..
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