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WHAT IS THIS FOR?? WHAT IS THIS FOR??
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7.3L IDI Diesels (Not Power Strokes) Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

       
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Old 06-01-2005, 10:44 PM   #1 (permalink)
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WHAT IS THIS FOR??
I just replace both my batteries to-night, needed them badly. When i changed the left side battery i noticed there is a plug coming from the negitive battery cable that is un plugged. The plug that it should be plugged into is running off the harness from the rad support. Any idea what this is for and why it would be un plugged.



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Old 06-01-2005, 10:58 PM   #2 (permalink)
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Re: WHAT IS THIS FOR??
[img]/ubbthreads/images/graemlins/shrug.gif[/img], obviously a ground for something. Connect it and see what NOW works that didn't before. [img]/ubbthreads/images/graemlins/rolleyes.gif[/img]Baja
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Old 06-01-2005, 11:01 PM   #3 (permalink)
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Re: WHAT IS THIS FOR??
Thanks for the re-ply but i think i'll wait to see if someone knows what it IS for before i plug it in. Any one else??



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Old 06-02-2005, 01:03 AM   #4 (permalink)
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Re: WHAT IS THIS FOR??
It is a ground that connects to a stud, in front of the battery, on the radiator support. There should be two other wires, coming out of the harness that bolt to the same location. Tim
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Old 06-02-2005, 04:43 AM   #5 (permalink)
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Re: WHAT IS THIS FOR??
you mean the block heater? is it a 3 prong outlet like a household plug?
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Old 06-02-2005, 10:21 PM   #6 (permalink)
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Re: WHAT IS THIS FOR??
Its not the block heater. it's on the right side.



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Old 06-02-2005, 10:52 PM   #7 (permalink)
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Re: WHAT IS THIS FOR??
its located directly under teh air scoop. it has a ground from the battery and 2 other wires connected to it. I dont know what its for but I woudl suggest grounding the wires out like normal............Gibson
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Old 06-02-2005, 11:10 PM   #8 (permalink)
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Re: WHAT IS THIS FOR??
I just bought the truck 2 months ago and i have been working on it getting it ready for the road. does any body know what it;'s for??




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Old 06-02-2005, 11:20 PM   #9 (permalink)
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Re: WHAT IS THIS FOR??
i have had the same wires both connected and disconnected to the negative terminal and have not noticed anything working or not working on the truck....
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Old 06-02-2005, 11:21 PM   #10 (permalink)
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Re: WHAT IS THIS FOR??
It has to be for something or it would not be there.





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Old 06-02-2005, 11:26 PM   #11 (permalink)
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Re: WHAT IS THIS FOR??
picture might help
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Old 06-02-2005, 11:28 PM   #12 (permalink)
 
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Old 06-05-2005, 10:23 AM   #13 (permalink)
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Re: WHAT IS THIS FOR??
I'll try it and see what happens.



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Old 06-07-2005, 10:41 PM   #14 (permalink)
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Re: WHAT IS THIS FOR??
Plugged it in an it made no differnece with the headlights. Didn't make a difference with anything. Any more help would be good.





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Old 06-07-2005, 11:42 PM   #15 (permalink)
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Re: WHAT IS THIS FOR??
I'll take a shot at the puzzle with a bit more info, color codes or something that may let me find it in my 1991 wiring diagrams........
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