dies when warm. not icp or cps - Ford Powerstroke Diesel Forum
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Old 06-20-2011, 10:34 AM
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dies when warm. not icp or cps

So after 20 minutes of driving or so my truck just dies. No warning or anything. No codes. No mods. Swapped icp and cps and it still does it. After it sits for a while it starts back up. Any ideas?
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Old 06-20-2011, 11:21 AM
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Could be IPR o-rings. How many miles are on the truck? Injector o-rings could also cause a problem. Does it smoke at idle after it warm? Is it a chugg chugg then dies, or just cuts off?
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Old 06-20-2011, 11:29 AM
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No chugging no smoke. Just dies like you shut the key off
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Old 06-20-2011, 11:33 AM
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How many miles are on the truck? If it was me I would see how the IPR o-rings look. Will it start back up right away or do you have to wait?
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Old 06-20-2011, 11:42 AM
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In the interim period when it won't start, if you crank it, does the tach respond?
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Old 06-20-2011, 12:00 PM
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240k. Tach reads all the time. It wont start for atleast 20 minutes. Then it fires right off and drives great for a while
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Old 06-20-2011, 12:30 PM
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Is a sure bet its IPR o-rings or injectors. I would check the IPR o-rings first!!!
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Old 06-20-2011, 06:21 PM
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It dies like it's an electrical issue. it just dies. no warning, no sputtering or missing. Usually when something mechanical like that happens it will atleast give warning correct? also, if the IPR O-rings are shot won't it get a low injection pressure reading thus sending a code?
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Old 06-21-2011, 06:53 AM
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Not all the time, check the nut on the back of the IPR and make sure it is tight.
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Old 07-04-2011, 12:46 PM
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I replaced the o rings and the problem still exsists. However if I poor cold water on the ipr. Relay (if that's what it is) it fires right back up. So I need to order a new one
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