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Help with a PCM

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Old 09-16-2013, 01:15 PM
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Help with a PCM

Hi the names ryan. I'm trying to help my father in law fix one of his work trucks. A Ford f250 diesel 7.3 year 95. I was told it needs a new PCM and i just have no idea where to find one. Just wondering if anyone on here would know where to find one. Thank you very much.
 
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Old 09-16-2013, 01:26 PM
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If it indeed does need one, car-part.com is where you can find them the easiest.
 
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Old 09-16-2013, 01:30 PM
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How was the diagnosis made? What is/isn't happening?
 
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Old 09-16-2013, 03:25 PM
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i honestly have no idea how it happened, all i was told was to get online and find a pcm for it. I'm more of a tech guy, not a car guy
 
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Old 09-16-2013, 03:35 PM
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Does ANYBODY know what the truck is doing wrong, or doing right?
 
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Old 09-16-2013, 04:08 PM
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If you need a PCM, Send me a PM (private message) I keep several on hand.
 
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Old 09-16-2013, 06:53 PM
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well white smoke was coming out of the tail pipe, something about its not running on all cylinders
 
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Old 09-16-2013, 07:59 PM
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ThAts not a PCM issue. That sound more like a under valve cover wiring harness.
 
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Old 09-16-2013, 09:24 PM
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Originally Posted by fordpride
ThAts not a PCM issue. That sound more like a under valve cover wiring harness.
X2..............
 
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Old 09-16-2013, 10:14 PM
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At the very least, that's WAAAAY too little info to conclude that it's the PCM. Doesn't necessarily mean it's _not_ the PCM, just a bit of a leap. No codes? So the truck runs? Was a buzz test and/or a cylinder contribution test done? As mentioned, was the UVCH wiring tested/inspected? If whoever made this diagnosis can't answer these questions specifically, someone else will have to look at the truck.

Edit - it may be instructive to disconnect each UVCH, one at a time, and run the truck briefly. See if (1) one of the disconnects does _not_ have an effect on how the truck runs (they all should), and (2) if disconnecting one makes the white smoke go away. The smoke might indicate that indeed the injectors on that connection are getting the signal to fire (which would indicate IDM and PCM both GOOD), but the injector itself is either not atomizing the fuel properly, or there's a compression problem in one of those two cylinders.
 
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Old 09-20-2013, 09:44 PM
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1994 7.3 idi

Originally Posted by plgebbia
If you need a PCM, Send me a PM (private message) I keep several on hand.
I may be in need of a pcm. I have a e350 Box that i can not solve trans issues everything has been replaced but the pcm. I can be reach at cjames4957@hotmail. com thanks
 
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Old 09-22-2013, 07:57 AM
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Originally Posted by Sofel
well white smoke was coming out of the tail pipe, something about its not running on all cylinders
You mean idm..looks like a pcm..but it drives the injectors...
 
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