2003 6.0 Cold Start Issue
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Joined: Sep 2012
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From: Roberts Cove, LA
2003 6.0 Cold Start Issue
Hi guys, long time viewer first time posting. I want to thank everyone in advance for all of the info I have learned about concerning the 6.0, always very helpful. I am a farmer from Louisiana and would appreciate any advice or direction someone could give me. I recently deleted the EGR, rebuilt the oil cooler, rebuilt the turbo, updated the turbo drain tube, replaced the water pump, changed the ICP sensor and pigtail and added a coolant filtration system. The truck fired up pretty quickly after the job was complete but about 2 days later I started having a problem where if the truck sat overnight, it would start, die, start, die, start then run fine for the rest of the day. Next morning same thing. I pulled the IPR to see if the screen was dirty but it was clean. I am at a loss where to look next, any suggestions would be great. Thank You.
Lead Driver
Joined: May 2014
Posts: 6,545
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From: Virginia Beach VA
what are the ICP numbers at KOEO, idle and 2500RPM? Specifically when it doesn't want to run, maybe first start, second start and third? Trying to see what your loosing when it dies. Also the IPR %'s
This could be a fuel issue. Pull the upper fuel filter, get a helper to do the key while you watch the fuel bowl fill. It should fill about as fast as you can say...I'm ready, they hear you yell stop, under 5 seconds. Do you have the blue spring mod for the fuel pressure? Last time you changed fuel filters?
This could be a fuel issue. Pull the upper fuel filter, get a helper to do the key while you watch the fuel bowl fill. It should fill about as fast as you can say...I'm ready, they hear you yell stop, under 5 seconds. Do you have the blue spring mod for the fuel pressure? Last time you changed fuel filters?
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From: Roberts Cove, LA
I will get those numbers for you when I get back next week. I did do the blue spring upgrade and I changed the fuel filters 1 week ago. I will also check the fuel bowl filling as you stated. Thanks for all your help so far
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From: Roberts Cove, LA
Update: I read a post by Cheezit that said to place the truck in a nose down position overnight. I tried this and the truck fired right up and never died. So know I know that my hpop is bad and will be changing that out soon. Is there anything else that I should do while changing out the hpop while I have the truck apart. I rebuilt the oil cooler about 2 months ago along with updating the turbo drain tube. Thanks in advance for your help and suggestions
Tuned
Joined: May 2014
Posts: 302
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From: Oregon
Update: I read a post by Cheezit that said to place the truck in a nose down position overnight. I tried this and the truck fired right up and never died. So know I know that my hpop is bad and will be changing that out soon. Is there anything else that I should do while changing out the hpop while I have the truck apart. I rebuilt the oil cooler about 2 months ago along with updating the turbo drain tube. Thanks in advance for your help and suggestions
Get the dieselsite HPOP. I will when mine goes out.
http://www.dieselsite.com/2003-20046...lpumphpop.aspx
Some also recommend swapping the HPO tube (3c3z-9t288-aa).
I'm also swapping to an '04.5+ intake manifold to make that hpop/icp/ipr work easier in the future.
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