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02-12-2009, 09:04 PM | #1 |
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Join Date: Jan 2007
Location: Elberta,Ala
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wiring diagram for a dash with gages
Does anyone have a wiring diagram for agage dash? I've searched every where and haven't found one. I really need it to trouble shoot an alternator problem.
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02-12-2009, 10:06 PM | #2 |
Life, Be In It.....
Join Date: Oct 2003
Location: Novato, California
Posts: 1,498
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Re: wiring diagram for a dash with gages
I have an adobe reader master diagram that another member made. But I don't know how to post it. Send me a PM with your email and I will email it to you.
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Project Name: LEMON DROP. Reconstruction started "December 2000". Projected completion date "Who knows" http://67-72chevytrucks.com/vboard/s...d.php?t=200082 |
02-13-2009, 12:19 AM | #3 |
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Re: wiring diagram for a dash with gages
How did you get to the dash with an alternator problem?
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02-13-2009, 06:29 PM | #4 |
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Join Date: Jan 2007
Location: Elberta,Ala
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Re: wiring diagram for a dash with gages
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02-13-2009, 07:12 PM | #5 |
Senior Member
Join Date: Jun 2001
Location: Shelbyville, KY
Posts: 3,261
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Re: wiring diagram for a dash with gages
Board vendor---GMC Paul had the conversion directions on his website. Huck
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02-15-2009, 09:08 PM | #6 |
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Location: Elberta,Ala
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Re: wiring diagram for a dash with gages
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02-17-2009, 09:04 PM | #7 |
Registered User
Join Date: Jan 2007
Location: Elberta,Ala
Posts: 77
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Re: wiring diagram for a dash with gages
ttt
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02-17-2009, 10:44 PM | #8 |
Rods
Join Date: Nov 2002
Location: Bryan, TX
Posts: 1,398
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Re: wiring diagram for a dash with gages
brown goes to pin 25 on dash plug.
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02-18-2009, 01:19 AM | #9 |
Msgt USAF Ret
Join Date: Jan 2005
Location: Kalamazoo, Michigan
Posts: 8,718
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Re: wiring diagram for a dash with gages
Not to be a wisea$$ but there are only 12 pins on the plug and the diagram shows the brown wire on the no. 8 plug on the idiot light dash gauge.
Have you converted to an internal regulated alternator? If so you will need to run a wire to the alternator to replace the brown wire in order to excite the regulator and it will have to have a resistor in it to simulate the idiot light. This wire can be run from anywhere that is a keyed on source except the ignition coil, and the resistor value is 75 ohms and 3 watts. You could use the brown wire off pin no. 8 and connect it to the fuse box to a keyed hot terminal, then hook the engine side to the resistor then to the alternator. If you want to run the battery guage then you will have to run the two black wires with the 4 amp fuses as specified in GMC Pauls FAQ. Here is a diagram showing the two wires on the engine side of the firewall. One is on the top and connects to the fender junction block and the other is on the bottom and connects to the three-way red circuit. I think I would just replace the battery gauge with a volt gauge and wire it accordingly.
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02-18-2009, 08:42 AM | #10 |
Rods
Join Date: Nov 2002
Location: Bryan, TX
Posts: 1,398
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Re: wiring diagram for a dash with gages
I got that out of the Factory service manual its not 25 pin its location 25. ill post the page from the assembly manual when i get home
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02-18-2009, 03:21 PM | #11 | |
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Re: wiring diagram for a dash with gages
Quote:
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