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81 4x4 electrical problem

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Old Nov 14, 2007 | 06:06 PM
  #1  
lenwood's Avatar
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From: norcal
Exclamation 81 4x4 electrical problem

i have headlights,turnsignals,flashers,radio...........no heater fan,no reverse lights,no gauges or warning lights,trucks electric choke not working,high idles constantly. alternator is working fine. i'm stumped......any suggestions?
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Old Nov 14, 2007 | 06:23 PM
  #2  
rowdy235's Avatar
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From: Sweet Home, OR
fuses all good? Fusible Links? Relays? Check the choke per service manual instructions.
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Old Nov 15, 2007 | 02:51 AM
  #3  
4banginRunner's Avatar
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From: Souderton, PA
either the relays are bad or the headlights, taillights, and flashers are in 2 relays mounted together with 1 plug under the drivers side dash, check if thats connected
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Old Nov 15, 2007 | 07:39 AM
  #4  
dropzone's Avatar
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From: PNW
OK, I tried scanning the wiring diagram out of my '81 Factory service manual. you will have to print them and piece them together as I could only do 8x11 at a time, I hope this helps you out :







Sorry it is kind of a random order and some of it may have been got off, but just got home from a long a$$ shift and I feel like crap...
here are the links from photobucket if that is easier:
http://i119.photobucket.com/albums/o...wiring/019.jpg
http://i119.photobucket.com/albums/o...wiring/020.jpg
http://i119.photobucket.com/albums/o...wiring/021.jpg
http://i119.photobucket.com/albums/o...wiring/022.jpg
http://i119.photobucket.com/albums/o...wiring/023.jpg
http://i119.photobucket.com/albums/o...wiring/024.jpg
http://i119.photobucket.com/albums/o...wiring/025.jpg

If somebody knows how/has the programs to put this in PDF format let me know I can email the files to you....
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Old Nov 15, 2007 | 10:48 AM
  #5  
lenwood's Avatar
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From: norcal
thanks guys, replacing the voltage reg today to see if it helps. if not diggin into my bently manual. i think it may be a short or ground problem if the vr doesnt fix it
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Old Nov 18, 2007 | 08:24 PM
  #6  
Island_Yota's Avatar
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Joined: May 2007
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From: Vancouver Island, B.C.
Mine did the same thing, It was working perfect until I changed the terminals(and yes I hooked up the battery correctly) I think I killed the 16g Fusable links I put in some how. Maybe just a bad connection.. then I again ive got loose wires everywhere .
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