Hard starting problems?
Thread Starter
|
Senior User
Joined: Jun 2004
Posts: 238
Likes: 0
Well, 7 of 8 are done. Can you guess which one is left?
I ohm'd each out and was getting 3 to 4 oh ohms on each old one. ( 6 of the 8 ) The one under the turbo was not even hooked up. Nor could i reach it to test it. So I know at least one is bad. I pulled out Champion Plugs. And they were reading the same. ( i did test them while they were in the block, dont know if that make a difference ).
I ohm'd each out and was getting 3 to 4 oh ohms on each old one. ( 6 of the 8 ) The one under the turbo was not even hooked up. Nor could i reach it to test it. So I know at least one is bad. I pulled out Champion Plugs. And they were reading the same. ( i did test them while they were in the block, dont know if that make a difference ).
Thread Starter
|
Senior User
Joined: Jun 2004
Posts: 238
Likes: 0
Well, 7 of 8 are done. Can you guess which one is left?
I ohm'd each out and was getting 3 to 4 oh ohms on each old one. ( 6 of the 8 ) The one under the turbo was not even hooked up. Nor could i reach it to test it. So I know at least one is bad. I pulled out Champion Plugs. And they were reading the same. ( i did test them while they were in the block, dont know if that make a difference ).
I ohm'd each out and was getting 3 to 4 oh ohms on each old one. ( 6 of the 8 ) The one under the turbo was not even hooked up. Nor could i reach it to test it. So I know at least one is bad. I pulled out Champion Plugs. And they were reading the same. ( i did test them while they were in the block, dont know if that make a difference ).
.3 to .4 ohms
Thread Starter
|
Senior User
Joined: Jun 2004
Posts: 238
Likes: 0
I replaced all 8 GP's with new ones. Then checked all the old ones with my battery charger. All 8 worked. So now im wondering if this would of been the problem or not. The back GP under the turbo was not hooked up, nor do I see a wire to plug to it. Is there an illustration I can look at so I can run a new wire? I will try and start it after I get the new wire on.
Well at least I have 8 spare GP's now.
Well at least I have 8 spare GP's now.
i ain't rite
Joined: Mar 2005
Posts: 65,558
Likes: 5,590
From: Marlboro Mental Hospital.
i did glow plugs on a 91 for a friend who's truck would not start without plugging it in. i pulled out 8 champions. they all light up when hooked to the battery, but the truck would not start on the glow plugs.
after i put the Motorcraft plugs in, it would fire rite up down as cold as -10º,
it had to be the champion plugs.
after i put the Motorcraft plugs in, it would fire rite up down as cold as -10º,
it had to be the champion plugs.
Thread Starter
|
Senior User
Joined: Jun 2004
Posts: 238
Likes: 0
i did glow plugs on a 91 for a friend who's truck would not start without plugging it in. i pulled out 8 champions. they all light up when hooked to the battery, but the truck would not start on the glow plugs.
after i put the Motorcraft plugs in, it would fire rite up down as cold as -10º,
it had to be the champion plugs.
after i put the Motorcraft plugs in, it would fire rite up down as cold as -10º,
it had to be the champion plugs.
Well I hope that's the case. I pulled out 7 Champion GP's. The one under the turbo was a NC..or NY. That's all that was on it. But i put in the motorcraft/beru GP's in.
Thread Starter
|
Senior User
Joined: Jun 2004
Posts: 238
Likes: 0
OK, I had clicking in the beginning when i would turn the key. Would one unplugged glow plug do this? Or does this occur even if all GP's are connected?
Second, Is there a way to test the GP relay? Other that taking out a GP and turning the key on?
Second, Is there a way to test the GP relay? Other that taking out a GP and turning the key on?
i ain't rite
Joined: Mar 2005
Posts: 65,558
Likes: 5,590
From: Marlboro Mental Hospital.
have someone turn the key on, while you are under the hood with a volt meter, neg to the neg of the battery, and pos on the meter to a glow plug tip. see if you get power. if you do, the glow plug circuit is ok. if you don't you will have to backtrack to find the loss of power.
did you check the ground on the controller??
also, don't worry about the clicking for now.
we will get to that later.
did you check the ground on the controller??
also, don't worry about the clicking for now.
we will get to that later.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
3 Best / 3 Worst Parts of Modern Ford Ownership
Brett Foote
10 Amazing Upgrades That Solve Common Ford Truck Owner Headaches
Pouria Savadkouei
Every 2026 Ford Engine Explained
Brett Foote
10 Ugly Ford Trucks That We Still Kinda Love
Joe Kucinski
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
Thread Starter
|
Senior User
Joined: Jun 2004
Posts: 238
Likes: 0
have someone turn the key on, while you are under the hood with a volt meter, neg to the neg of the battery, and pos on the meter to a glow plug tip. see if you get power. if you do, the glow plug circuit is ok. if you don't you will have to backtrack to find the loss of power.
did you check the ground on the controller??
also, don't worry about the clicking for now.
we will get to that later.
did you check the ground on the controller??
also, don't worry about the clicking for now.
we will get to that later.
Ok Ill give that a shot in the morning. I'll try each GP to make sure all of them are getting Voltage. BUT my last GP is not connected, there isn't a wire for it. I'm guessing that I should connect a wire from another GP and just jumper it over?
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
The missing glow plug is part of your problem.
The system is timed by resistance feedback from the glow plugs.
Missing or burnt out glow plugs reduce the resistance, which shortens the glow cycle.
The glow plug under the turbo is a pain, are you sure the wire is not behind the main harness hiding from you?
There are fusible links in the harness, so jumping from one plug to the next may kill the other plug as well.
The system is timed by resistance feedback from the glow plugs.
Missing or burnt out glow plugs reduce the resistance, which shortens the glow cycle.
The glow plug under the turbo is a pain, are you sure the wire is not behind the main harness hiding from you?
There are fusible links in the harness, so jumping from one plug to the next may kill the other plug as well.
Thread Starter
|
Senior User
Joined: Jun 2004
Posts: 238
Likes: 0
A pain? It was so tight I said a few four letter words. But I got er. i would have to look inside the plastic that houses the wires. But I didn't see anything. I was hoping to fine a wiring diagram on here. Please keep posted, Ill let you know the outcome.
Post Fiend
Joined: Nov 2003
Posts: 21,285
Likes: 16
From: Nutter Fort, WV
Inside the harness you should either see the wire or where it was either cut or burnt off.
You may have to remove a couple injection lines from the injectors to get the harness out where you can open it up enough to see what is going on.
Sad thing, you are probably going to disturb the return lines enough fixing the glow plug problem that return lines will be next.
You may have to remove a couple injection lines from the injectors to get the harness out where you can open it up enough to see what is going on.
Sad thing, you are probably going to disturb the return lines enough fixing the glow plug problem that return lines will be next.
Thread Starter
|
Senior User
Joined: Jun 2004
Posts: 238
Likes: 0
Inside the harness you should either see the wire or where it was either cut or burnt off.
You may have to remove a couple injection lines from the injectors to get the harness out where you can open it up enough to see what is going on.
Sad thing, you are probably going to disturb the return lines enough fixing the glow plug problem that return lines will be next.
You may have to remove a couple injection lines from the injectors to get the harness out where you can open it up enough to see what is going on.
Sad thing, you are probably going to disturb the return lines enough fixing the glow plug problem that return lines will be next.
Post Fiend
Joined: Oct 2007
Posts: 10,501
Likes: 5
From: Faibanks Ak.
well mine seems to be in the same state...but mine is that it loses prime if it isnt run like everyday...the guy im getting it from thinks its leaking air in in the IP...but mine had sat for a couple years...so we dont know whats going on...sorry for the threadjack, but similar problems and the solutions may help us both
Also just because they are not leaking fuel does not mean there is not an air leak.
