truck dies..not CPS! - Ford Powerstroke Diesel Forum
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Old 08-07-2007, 02:06 PM
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truck dies..not CPS!

Before, my truck would not start back up after shutting it down and i would have to wait from 5 minutes up to 45 minutes for it to start again. Well, my problem got worse. It seems now that my truck just dies when driving and will not start back up untill the engine cools down (about 45 minutes to 1 hour). I replaced the ICP sensor because that is what the scanner pulled as a code (P1212). The thing is that when i take it to the tech, the truck wont fail at all. they need for it to fail so they can diagnose the problem. They kept it for 2 days and ran the truck up and down and never failed. This morning going to work, what a surprise, it dies on me. Its very frustrating and don't know what to do anymore. Any ideas?
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Old 08-08-2007, 06:23 PM
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yea,... this may suck but I think you might have a blown injector o-ring somewhere. When they get hot it bypasses alot of the oil and dies... You can get it hot til it dies and Ford has special plugs that block off the high pressure lines to determine what side the leak is on... or I could be completely wrong and it could be something else...
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Old 08-08-2007, 08:51 PM
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A friend of mine brought over a diesel tech that is very good at the 6.0 and 7.3 engines and got to it. He explained to me that the P1212 is normal after you keep on cranking with no firing up. He found out that my new CPS sensor that I had just installed 2 weeks ago, was actually bad. He replaced it and that fixed the problem. The dealer sold me a bad CPS senor,lol. Thanx for you help.
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Old 08-08-2007, 08:57 PM
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Check your oil. I know of a few ruff running trucks that were 5 q's low.
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Old 08-10-2007, 09:31 AM
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Could possibly be a problem with orings in the IPR, may need to rebuild or replace. They don't always function if internal orings are bad and oil is hot....
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Old 08-10-2007, 09:55 AM
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Send a message via MSN to Justinlw
Mine had the same symptoms, it was the HPOP. Mine is a 6.0l, but you just described my symptoms.
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Old 08-10-2007, 10:07 AM
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i dont have my crystal ball working but sounds to me like its a possible ipr problem, and also check the conector going into the ipr , they will tough wires internaly in the connector
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Old 08-10-2007, 12:03 PM
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Read post #3: My problem is fixed. Even though I put a new CPS sensor, it was bad and was causing the problems. I changed the new CPS for another new one and that took care of it. Thanx for your input guys.
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Old 08-10-2007, 12:10 PM
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Glad to hear it! Proof again that just because it's new doesn't mean it's GOOD!
Later,
Tom
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Old 08-10-2007, 12:34 PM
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good deal, glad you got it running
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