Possible Multiproblems, Can you help??
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
If you're down around 10v with the key on, you're likely dropping too much while cranking. Get your batteries charged up and load tested.
Yes there is a problematic electrical thing under the valve covers, but it's just an electrical plug (that has probably come loose on yours). No reason to be shy about pulling the valve covers. When you do, try cranking the engine and watching to see if all 8 injectors are spitting oil while cranking. Worn injectors will also cause a no start unless plugged in. No glow plugs will still let the truck start when it's warm outside.
As mentioned, starting fluid is a no no. Have you ever heard a pop or miniature backfire when trying to start with the fluid? Check your blowby for compression gasses just to be safe.
Yes there is a problematic electrical thing under the valve covers, but it's just an electrical plug (that has probably come loose on yours). No reason to be shy about pulling the valve covers. When you do, try cranking the engine and watching to see if all 8 injectors are spitting oil while cranking. Worn injectors will also cause a no start unless plugged in. No glow plugs will still let the truck start when it's warm outside.
As mentioned, starting fluid is a no no. Have you ever heard a pop or miniature backfire when trying to start with the fluid? Check your blowby for compression gasses just to be safe.
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New User
Joined: Dec 2010
Posts: 13
Likes: 0
Can the injectors be interchanged, meaning, is each injector differant, I think my injectors may be my problem. I just put in my new cps and it still runs like crap, it hasn't shut off on me yet. I pulled the injectors, why I did I don't know but since I put them back it seems to be running worse, so did I put the wrong injector in the wrong slot? Is that possible? and if so how do you know which one goes where? Still waiting for my glow plugs to come in. I only took the injectors out of the drivers side and I thought I put them in the same order I took them out, I don't understand why its running worse.
Hotshot
Joined: Feb 2007
Posts: 10,499
Likes: 10
From: Sterling Heights,Mi
Check your UVCH connections, check your torque on the injectors, allso re torque your rocker arms while in there.
I am no expert on this, but for the life of me, I can not think of a single reason that you would have to put them back in the same order.
My I ask what the original problem was, and why you are after the injectors?
I am no expert on this, but for the life of me, I can not think of a single reason that you would have to put them back in the same order.
My I ask what the original problem was, and why you are after the injectors?
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New User
Joined: Dec 2010
Posts: 13
Likes: 0
I just looked at the injectors and two injector's holes face one way and the other two injector's holes face the other way, I wonder if that makes a differance. I'm now after the injectors cause it doesn't feel like its firing right. It will gets a quick burst of power then dies down, it just feels like one or two cylinders aren't firing right.
Cargo Master
Joined: Oct 2007
Posts: 2,712
Likes: 107
From: BoCoMo
Did you get you CPS changed out? Mine died on me like that several times, but only when I went through a large water puddle in a pouring rain, never on a dry day. Moisture was getting passed the seal and causing it to hic-up or die. a little vasoline on the rubber seal helped seal it up tighter.
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New User
Joined: Dec 2010
Posts: 13
Likes: 0
nope, about to get new o rings cause I noticed one is missing. so if I take the injector out and keep it plugged in, should I turn the key and see if its firing? Sorry I'm a self taught mechanic ha. Would it also be possible I bent a push rod? Just for the fact it feels like its misfiring?
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Cargo Master
Joined: Oct 2007
Posts: 2,712
Likes: 107
From: BoCoMo
Your injectors would cause your truck to run badly (o-ring missing) but they would not cause a full shut down of your truck as if the key was turned off. If the injectors were that bad to 'shut the truck off'.... the truck would have never started in the first place.
Cargo Master
Joined: Feb 2010
Posts: 2,298
Likes: 94
From: Delta, CO
nope, about to get new o rings cause I noticed one is missing. so if I take the injector out and keep it plugged in, should I turn the key and see if its firing? Sorry I'm a self taught mechanic ha. Would it also be possible I bent a push rod? Just for the fact it feels like its misfiring?
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New User
Joined: Dec 2010
Posts: 13
Likes: 0
great comparisson thanks, the shutting off while running I'm not too concerned with right now, I'm not sure if its still doing it yet since I put in the new CPS. I'm ordering new o-rings for the injectors and going to test the injectors themselves. So far it seems that the injectors are interchangeable? I haven't seen anything to the contrary.
Cargo Master
Joined: Oct 2007
Posts: 2,712
Likes: 107
From: BoCoMo
great comparisson thanks, the shutting off while running I'm not too concerned with right now, I'm not sure if its still doing it yet since I put in the new CPS. I'm ordering new o-rings for the injectors and going to test the injectors themselves. So far it seems that the injectors are interchangeable? I haven't seen anything to the contrary.
As for the 'shutting down' you will sheep your pants if it happens going down the interstate and your pulling a load at 70 mph...
(I was hanging onto the Wheel and my wife was screaming bloody murder...)
If you mean are the injectors 'interchangeable' from one cylinder to the next? Do not pull one injector and put it in another cylinder, after being run they Are Not interchageable as they have been 'seated' in the certain cylinder and may/will cause problems if 'interchanged'. Put them back in the same place they came out of.
Duct Tape Tech.
Joined: Jul 2009
Posts: 2,381
Likes: 1
From: San Antonio Tx.
The Glow Plug relay is fine, I turned the key and tested both terminals, they are both showing around 10v and I hear it click off. I've never replaced the glow plugs myself, its always ran rough so they may all be burned out. They had new ones put in but I don't think they really did it.
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
If you pulled your injectors out, you need new o-rings on them like the others have said. If you're missing an o-ring, your truck will not run right. Don't even try to do anything else before you pull the injectors back out and replace the o-rings. Get them from Ford, International, or Alliant Power. Don't get the cheap o-rings from the local parts store.