HELP truck wont start.....
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Senior User
Joined: Jan 2013
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From: Kissimmee, FL
HELP truck wont start.....
Let me start from the beginning. I have had a cracked block since I bought the truck. Over the last few months I have overheated it and blew a head gasket. 2 weeks ago I removed the head sent it to a machine shop. They decked the head and told me that my injector cups were leaking this is why I had puking out the degas bottle. I replaced the injector cups, followed the torque specs on head, replaced orings on oil cooler, changed oil, rebuilt fuel bowl, replaced copper washer on injector, I did not replace orings since they were only 3 weeks old.
Now that this is all together I tried to start it. For 2 days I cranked and cranked. ICP 2000-3000 voltage 10.5-10.9 cranking. I don't know what my fuel pressure is but I have fuel pressure. I did a KOEO test with a normal ROM error. I checked all of the fuses one was bad I replaced it. I did a buzz test all injectors fired.
Today I decided to do the no no and use starter fluid. I disconnected the glow plug relay and started it. It would not stay cranked nor did any oil come out of the oil spouts. I removed the oil plug inside the valve over and am getting oil out of it.
I don't know what else to try. Any help please....
Now that this is all together I tried to start it. For 2 days I cranked and cranked. ICP 2000-3000 voltage 10.5-10.9 cranking. I don't know what my fuel pressure is but I have fuel pressure. I did a KOEO test with a normal ROM error. I checked all of the fuses one was bad I replaced it. I did a buzz test all injectors fired.
Today I decided to do the no no and use starter fluid. I disconnected the glow plug relay and started it. It would not stay cranked nor did any oil come out of the oil spouts. I removed the oil plug inside the valve over and am getting oil out of it.
I don't know what else to try. Any help please....
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Tell us more about the cracked block and why you're not just dropping another engine in instead of doing all this work?
What happened when you blew the head gasket? Did the engine still run? Was it running before you did all this work and the no start is a coincidence, or was it not starting before?
When you used the starting fluid, the engine ran until the fluid ran out, right? Any severe blowby out the oil fill tube while cranking? When you removed the oil rail plug and cranked, did you get a large volume of oil that made you belive 2 - 3k psi at the ICP, or did it come out slowly?
If nothing else checks out, then yes, it kind of sounds like you have a dead IDM. Know anyone with a 95 - 03 7.3 truck you can swap IDM's with?
What happened when you blew the head gasket? Did the engine still run? Was it running before you did all this work and the no start is a coincidence, or was it not starting before?
When you used the starting fluid, the engine ran until the fluid ran out, right? Any severe blowby out the oil fill tube while cranking? When you removed the oil rail plug and cranked, did you get a large volume of oil that made you belive 2 - 3k psi at the ICP, or did it come out slowly?
If nothing else checks out, then yes, it kind of sounds like you have a dead IDM. Know anyone with a 95 - 03 7.3 truck you can swap IDM's with?
Thread Starter
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Senior User
Joined: Jan 2013
Posts: 189
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From: Kissimmee, FL
Tell us more about the cracked block and why you're not just dropping another engine in instead of doing all this work?
***Can't afford a rebuilt engine or a good used one. They want 2500 for a used one around me.
What happened when you blew the head gasket? Did the engine still run? Was it running before you did all this work and the no start is a coincidence, or was it not starting before?
***Yes the engine still ran. The problem is I was puking out the degas bottle.
When you used the starting fluid, the engine ran until the fluid ran out, right? Any severe blowby out the oil fill tube while cranking? When you removed the oil rail plug and cranked, did you get a large volume of oil that made you belive 2 - 3k psi at the ICP, or did it come out slowly?
***Yes I ran the engine until it ran out of fluid, no severe but does have blowby. It got all over me. It was highly pressurized. My infinity told me that my ICP was 2000-3000
If nothing else checks out, then yes, it kind of sounds like you have a dead IDM. Know anyone with a 95 - 03 7.3 truck you can swap IDM's with?
***No one that I can swap. Christof13T and I talked tonight. We both believe it is ether IPR or IDM. The duty cycle of IPR is 95% under long cranks. Skyskijason will be in FL this weekend maybe I can convince him in helping.
***Can't afford a rebuilt engine or a good used one. They want 2500 for a used one around me.
What happened when you blew the head gasket? Did the engine still run? Was it running before you did all this work and the no start is a coincidence, or was it not starting before?
***Yes the engine still ran. The problem is I was puking out the degas bottle.
When you used the starting fluid, the engine ran until the fluid ran out, right? Any severe blowby out the oil fill tube while cranking? When you removed the oil rail plug and cranked, did you get a large volume of oil that made you belive 2 - 3k psi at the ICP, or did it come out slowly?
***Yes I ran the engine until it ran out of fluid, no severe but does have blowby. It got all over me. It was highly pressurized. My infinity told me that my ICP was 2000-3000
If nothing else checks out, then yes, it kind of sounds like you have a dead IDM. Know anyone with a 95 - 03 7.3 truck you can swap IDM's with?
***No one that I can swap. Christof13T and I talked tonight. We both believe it is ether IPR or IDM. The duty cycle of IPR is 95% under long cranks. Skyskijason will be in FL this weekend maybe I can convince him in helping.
Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
You're not getting 2000 - 3000 PSI while cranking with an IPR of 95%, unless something is really whacked in the tuning. The IPR is supposed to regulate ICP to 700 PSI during startup, so a high reading on the IPR says the there's no High Oil Pressure. Pull the ICP connector and see if it will start.
This is so challenging on so many levels - you have a truck that is far from 100% and we don't even know if the usual stuff will get you going.
Head gaskets rarely go, so it sounds like the cup(s) was your whole culprit. A cup allowing combustion gasses into the coolant means the copper washer on the injector was not sealed AND a cup went. Either the copper washer was bad, or you had a loose injector. I have partaken in this rodeo and I have the bruises to prove it.
This is so challenging on so many levels - you have a truck that is far from 100% and we don't even know if the usual stuff will get you going.
Head gaskets rarely go, so it sounds like the cup(s) was your whole culprit. A cup allowing combustion gasses into the coolant means the copper washer on the injector was not sealed AND a cup went. Either the copper washer was bad, or you had a loose injector. I have partaken in this rodeo and I have the bruises to prove it.
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Thread Starter
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Senior User
Joined: Jan 2013
Posts: 189
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From: Kissimmee, FL
You're not getting 2000 - 3000 PSI while cranking with an IPR of 95%, unless something is really whacked in the tuning. The IPR is supposed to regulate ICP to 700 PSI during startup, so a high reading on the IPR says the there's no High Oil Pressure. Pull the ICP connector and see if it will start.
This is so challenging on so many levels - you have a truck that is far from 100% and we don't even know if the usual stuff will get you going.
This is so challenging on so many levels - you have a truck that is far from 100% and we don't even know if the usual stuff will get you going.
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Hotshot
Joined: Jan 2011
Posts: 18,849
Likes: 179
From: Puget Sound
Spent some time on the phone with Rishsd, as did Chris. Everything is pointing to either a stuck IPR or bad fuel pressure. The cracked block is coolant only near the freeze plugs and he's working on a solution to that.
Thread Starter
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Senior User
Joined: Jan 2013
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From: Kissimmee, FL
Jason came by the house today. I have not had a chance to do the IPR. But we ruled out IDM and we ruled out PCM. Oil is coming out the spouts.you can hear Injectors firing. Still stumped. But I will have to do the IPR when my work contract ends these 12hr shifts with a 3hr drive is killing me.thanks for all the help
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
What changed? Before you had no oil coming from the spouts now you do. What was the IPR % while watching the oil come out?
If you're now getting oil discharge, try plugging the truck in for a few hours when it's a little warm outside and see if it will fire off then.
If you're now getting oil discharge, try plugging the truck in for a few hours when it's a little warm outside and see if it will fire off then.
Thread Starter
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Senior User
Joined: Jan 2013
Posts: 189
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From: Kissimmee, FL
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