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1994.5 - 1997 7.3L Power Stroke Diesel  

burned up idm

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Old Oct 17, 2016 | 04:56 AM
  #1  
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burned up idm

Wll fellas, my idm decided to leave this world here last weekend. The adventure started last Friday when I drove my truck about 120 miles with about 4 hours of traffic in there. Truck ran great no problems. Then Saturday I started it to swap cars in the drive way and had no problems.....went to leave for work Sunday morning and nothing no start but tured ovet fast. So after some looking I found the idm toasted. I also found the 30 amp fuse for it in the under hood panel blown. I have a replacement on its way.

So the question is, is there something that would go bad from one start of the engine to the very next that would burn up an idm. Here is a picture of the area that burned up. Also the idm was modified to 140v.


 
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Old Oct 17, 2016 | 05:41 AM
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My 140 modded idm worked for a few years, then just quit. I don't know the reason, but I think maybe the 140 mod isn't real good for the stock idm's. I just run a 120 now.
 
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Old Oct 17, 2016 | 02:13 PM
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Thanks bud I was suspectin the voltage mod but just wanted to hear from others before I chanced my new idm to the possibility of a bad component and burned it up too!
 
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Old Oct 17, 2016 | 06:03 PM
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Send it back and get a used oem one. They can be had for $100.
 
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Old Oct 17, 2016 | 06:27 PM
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What should I be sending back?
 
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Old Oct 17, 2016 | 07:58 PM
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You could send it to me and I could try to fix it...
 
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Old Oct 17, 2016 | 08:15 PM
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I would gladly however I purchased a modified voltage and frequency idm from a online store. It's similar to swamps but cost only 170 bucks instead of over 400, and carries a lifetime warranty. I do have to send them mine as a core.
 
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Old Oct 17, 2016 | 08:25 PM
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Dang ok. No worries! Hopefully this one lasts longer!
 
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Old Oct 17, 2016 | 08:32 PM
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online store? Who?
 
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Old Oct 17, 2016 | 08:34 PM
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All computer resource
 
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Old Oct 17, 2016 | 08:44 PM
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Yeah send the burned up idm back and either get a new one or your money back.
 
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Old Oct 17, 2016 | 09:35 PM
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The core I am returning is the original 1997 idm off the truck. I didn't purchase it from anyone so I can't return it or exchange it.
 
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Old Oct 18, 2016 | 10:56 AM
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Does the original IDM work? If so, why return a working unit as a core? Send them the one that burned. In any event, you should have a stock IDM on hand as a spare. Spare PCM+IDM are a good thing to have on hand anyway; goes doubly so if you're running either one modded.
 
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Old Oct 18, 2016 | 11:24 AM
  #14  
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I think I need to clarify. The idm that burned up is the one ford put on this truck when it was built. I removed it and modified it to 140 volts. It burned up so I bought a reman from an onine store and have to send my old burned up one back as a core.
 
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Old Oct 18, 2016 | 11:42 AM
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Oh that makes more sense. So only one IDM in the picture. In that case, def. get one from a part-out truck, along with a compatible PCM, to keep as spares. Going price seems to be $100-150 for PCM, $50-100 for IDM.
 
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