glow plugs
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From: Topeka,ks
glow plugs
I have read the forum on the glow plugs but dont help my situation. Okay i work at the local ford dealership so i got new motorcrafts plugs today and put them in now when i turn the key on dont show glow plugs working so now what.
Post Fiend
Joined: Feb 2009
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From: Ottawa, Ontario
You have old system. Best to convert to manual push button glow plugs.
You'll just need a momentary push button, run a wire to the GP solenoid purple wire terminal, make sure to remove the purple wire from solenoid so the truck can’t control them, and then find a ignition on hot wire in the cab, connect that to the one side of the momentary switch and the wire you ran to the purple wire terminal, to the other side, bam, done.
You'll just need a momentary push button, run a wire to the GP solenoid purple wire terminal, make sure to remove the purple wire from solenoid so the truck can’t control them, and then find a ignition on hot wire in the cab, connect that to the one side of the momentary switch and the wire you ran to the purple wire terminal, to the other side, bam, done.
Post Fiend
Joined: Feb 2009
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From: Ottawa, Ontario
Nope. That thing that screws into the back of the head, is just the controller. All it does is tell the relay how long to keep the glow plugs on, depending on coolant temp.
But now with a manual switch, YOU will be in full control of the glow plugs. And by removing the purple terminal wire on the relay, that will disconnect that controller. So just leave it back there and forget about it.
But now with a manual switch, YOU will be in full control of the glow plugs. And by removing the purple terminal wire on the relay, that will disconnect that controller. So just leave it back there and forget about it.
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Senior User
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From: Topeka,ks
Okay thanks and ill give it a try in the morning. Where can I find a switch that will work and what size wire do I need
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Post Fiend
Joined: Feb 2009
Posts: 8,005
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From: Ottawa, Ontario
Any push button switch will do, your local auto parts store will surely have one.
And any little wire, theres only 12V running through it.
Oh, and a good tip on mounting your switch, mount it somewhere on the left side of the steering column, so on those colder days, if you need to give it a shot of the glow plugs, while cranking, you can with your left hand.
And any little wire, theres only 12V running through it.
Oh, and a good tip on mounting your switch, mount it somewhere on the left side of the steering column, so on those colder days, if you need to give it a shot of the glow plugs, while cranking, you can with your left hand.
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Post Fiend
Joined: Nov 2005
Posts: 7,437
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From: Charles Town, W bygod Va
Any push button switch will do, your local auto parts store will surely have one.
And any little wire, theres only 12V running through it.
Oh, and a good tip on mounting your switch, mount it somewhere on the left side of the steering column, so on those colder days, if you need to give it a shot of the glow plugs, while cranking, you can with your left hand.
And any little wire, theres only 12V running through it.
Oh, and a good tip on mounting your switch, mount it somewhere on the left side of the steering column, so on those colder days, if you need to give it a shot of the glow plugs, while cranking, you can with your left hand.
Use at least the same size wire as the purple one you are removing, I don't know what gauge it is off hand. 12v has nothing to do with it, it's the amperage you are concerned about. You can't just use any switch either, there isnt a whole lot of current (amps) running through the GP control wire, but the switch needs to be big enough to handle the load. I'd go with a minimum of 10 amps on the switch... that's just my guess as I'm not sure how many amps runs through that circuit but a 2 amp switch would most likely burn up after some use.
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From: Topeka,ks
tytet
Okay guys s o I put in the new switch. It's a 60 amp switch and i dont get no power to glow plugs still so is it the relay ir what thanks. I can heroe it click but i tested no power to glow pmplug.
Lead Driver
Joined: Apr 2008
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The power going through the switch to activate the solenoid is minimal. The actual current for the glow plugs goes from the battery through the solenoid. In fact that is the whole point of the solenoid... so the power does not have to go through the controller, or switch.
Post Fiend
Joined: Nov 2005
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From: Charles Town, W bygod Va
You need to check for power to the big terminal on the relay that doesnt go to the glowplugs, it should have power all the time.
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Senior User
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From: Topeka,ks
I did the big termanal does have power. So I had my wife push the new switch I just put in like u guys said and when u push it you can here a like buzzing sound and I check the other wire to power the glow plugs and no power. How do you test the relay and sew if its hood
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From: Topeka,ks
Okay so if i take the big main power and jump where the purple wire used to be then the other big wire will have power right if it don't its no good right okay got ya thanks ill try when i gey off work