Keeps on dying, then starts back up? - Ford Powerstroke Diesel Forum
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  #1  
Old 11-05-2008, 05:14 PM
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Exclamation Keeps on dying, then starts back up?

My mechanic is scratching his head to say the least. About a week ago the truck died. Didn't bog, lurch or anything, just quit like someone turned off the key. Wait for about 20 mins, and it will start back up and run like there is no problem at all. Then die again after about 10 mins. of running. Put in a new CPS. Same problem. Replaced the PCM today. SAME PROBLEM! I love this truck, and I really need help fast since my boss is talking about getting me one of the new Dodge diesels. Now, a new truck is nice, but I would rather drive a powerstroke any age. Any ideas? The most puzzling thing to me is how random it is. It will just run sometimes, and then not other times? Lots of fuel in the bowl, new filter as well. Oil pressure builds up on the guage while cranking. I just seriously don't know where to go next? Mechanic said something about the code reading a ROM error? I thought switching out the PCM would help that, but I guess not. SOMEONE OUT THERE PLEASE HELP ME!!! POWERSTROKE FRIENDS DON'T LET POWERSTROKE GUYS END UP IN A DODGE!!!
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  #2  
Old 11-06-2008, 06:01 AM
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Find out what the code was/is from him.

UVC harness?
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Old 11-06-2008, 06:56 AM
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Engine wire harness has a problem somewhere. Need to get a wire diagram and trace from one end to the other. PCM is getting some strange voltage and has a problem. Something is getting crossed up and causing PCM problems.
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Old 11-06-2008, 08:28 AM
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Bully dog?

Could the Bully dog 4 bank 6 position chip be the culprit? Do these things go bad and affect the PCM? I yanked the chip and the truck has now ran this morning for over 2 hours without a hiccup. It SUCKS going from a chip back to stock, but at least it's running right now. Has anyone heard of chips causing issues like this before?
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Old 11-06-2008, 01:23 PM
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Was the chip in there securly when you took it out?

It could have not making good enough contact with the contacts on the PCM, causing your problem.

How long had the chip been in there?
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Old 11-06-2008, 04:46 PM
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Chip secure

It didn't seem loose, but then I'm not sure how tight they should be in there. Here is what's odd. With chip removed, I got vehicle started again, drove down to mechanic, who ran another scan on the system. Scan came up with NO CODES AT ALL! So I drove it to work. And then...it died again. So I had it towed back to mechanic again. At which point it pulled up an Injector Control Module code. So we are replacing that in the morning, but with the PCM, ICM, and individual sensors and towing included my bill is getting up there pretty dang hi!
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  #7  
Old 11-07-2008, 05:54 AM
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I think it is the Under the Valve Cover harness FWIW.

Let us know what happens...
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Old 11-07-2008, 06:52 AM
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02

Thanks Chris,

Hey I just realized your truck is an '02 as well! What mods do you have on it, I didn't see any in your signature?
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  #9  
Old 11-07-2008, 07:15 AM
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Afe stage II, straight piped to a 6"single stack, Dp-tuner, Gauges, ATS housing, WW, Stancor GPR, Around the belt radiator hose, CCV, Zoodad, T/C lockup, W/G disconnected, AIH delete, foil delete, Thats all I can remember right now
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