PLEASE HELP!
Okay here Is my problem I've got an 04 dodge 2500 has 174k 4x4 no mods except intake. I got the truck with a blown motor. So I got a new block. Rebuilt it top to bottom with arp hardware. Put the motor in the truck and all it did was crank. Checked my fuel pressure and I was barely coming out of the cp3. So I put a new pump on it along with a new fuel rail pressure sensor. Replaced the fuel delivery tubes. Still no fire just cranks. I don't have a check engine light. I unplugged the cam and crank sensors one at a time to see if the ECM is reading them, and they both threw codes. Also unplugged the FCA and no start as well. I can hear the injectors go threw I guess a system check when I first turn the key on. There was a long 10gauge wire on the driver side of the engine. That reached both the negative battery post and the body ground. I installed it to the body? Is that wrong?
Someone please help me I'm in dire need of this truck running. |
Originally Posted by dallyUP!
(Post 1009328)
Okay here Is my problem I've got an 04 dodge 2500 has 174k 4x4 no mods except intake. I got the truck with a blown motor. So I got a new block. Rebuilt it top to bottom with arp hardware. Put the motor in the truck and all it did was crank. Checked my fuel pressure and I was barely coming out of the cp3. So I put a new pump on it along with a new fuel rail pressure sensor. Replaced the fuel delivery tubes. Still no fire just cranks. I don't have a check engine light. I unplugged the cam and crank sensors one at a time to see if the ECM is reading them, and they both threw codes. Also unplugged the FCA and no start as well. I can hear the injectors go threw I guess a system check when I first turn the key on. There was a long 10gauge wire on the driver side of the engine. That reached both the negative battery post and the body ground. I installed it to the body? Is that wrong?
Someone please help me I'm in dire need of this truck running. Sent from my DROID RAZR using Tapatalk 2 |
I've had it at a shop and they can't seem to figure it out. So I'm just trying to get ideas.
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Originally Posted by dallyUP!
(Post 1009371)
I've had it at a shop and they can't seem to figure it out. So I'm just trying to get ideas.
The things I would think from a quick look at your post would be l/p fuel delivery system or a possible cracked injector which had caused the original engine failure. Take into account that the cp3 will make NO pressure when open to the atmosphere. In other words the fuel will not "spray" out under pressure unless the system is closed. Sent from my DROID RAZR using Tapatalk 2 |
Originally Posted by dallyUP!
(Post 1009371)
I've had it at a shop and they can't seem to figure it out. So I'm just trying to get ideas.
Sent from my DROID RAZR using Tapatalk 2 |
Lift pump is putting out 14psi. They haven't told me what the cp3 is putting out. I plan on asking them tomorrow cause that will either tel me if there is a leak or bad injectors. Or if there is an electrical problem. I understand that there needs to be a minimum of 3000psi to fire the injectors.
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Originally Posted by dallyUP!
(Post 1009414)
Lift pump is putting out 14psi. They haven't told me what the cp3 is putting out. I plan on asking them tomorrow cause that will either tel me if there is a leak or bad injectors. Or if there is an electrical problem. I understand that there needs to be a minimum of 3000psi to fire the injectors.
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okay thats what i figured. when i was cranking the engine over thew #1 injector was getting between 12-14v. it spiked to 22v once. so idk if thats enough to fire it? but i was stumped so i sent it to the shop. tomorrow ill have more info on what the ecm is reading for rail pressure.
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Maybe I didn't see it but did you bleed the injectors??, if that needs to be done on these motors. I'm not too familliar with these but it could be the issue.
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Originally Posted by bobfbigman
(Post 1009449)
Maybe I didn't see it but did you bleed the injectors??, if that needs to be done on these motors. I'm not too familliar with these but it could be the issue.
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makes sense, told you I wasn't sure on these motors,,,,Next:pca1:
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I still have a gut feeling my injectors are bad. But I will see what the shop says on what my fuel pressure is reading on the scan tool.
---AutoMerged DoublePost--- Okay called the shop. They said that the FCA was bad that they put in. And the reason they put one in, was because the one on the brand new pump I put on was also bad. Tech said he did a rattle test that alldata said to do and he says mine doesn't rattle. So they are installing another one. I asked what my fuel pressure is at the pump and he said 22psi. Which I tought was good? He said my rail pressure should be between 2200 and 6000 at cranking? So I asked him what it's at now! And he said he don't know. |
Bummer
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Originally Posted by dallyUP!
(Post 1009514)
I still have a gut feeling my injectors are bad. But I will see what the shop says on what my fuel pressure is reading on the scan tool.
---AutoMerged DoublePost--- Okay called the shop. They said that the FCA was bad that they put in. And the reason they put one in, was because the one on the brand new pump I put on was also bad. Tech said he did a rattle test that alldata said to do and he says mine doesn't rattle. So they are installing another one. I asked what my fuel pressure is at the pump and he said 22psi. Which I tought was good? He said my rail pressure should be between 2200 and 6000 at cranking? So I asked him what it's at now! And he said he don't know. Sent from my DROID RAZR using Tapatalk 2 |
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