Need some wiring help - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JBstor · 03-09-2005, 10:50 PM

Hi all!

I'm trying to button up the last of the wiring on the '70. Because I had a buddy ''helping" me take it apart, there are a few wires I cannot figure out. They weren't marked when taken apart, and the wiring diagram has not been too helpful. I have all the other wiring done, and want to fire up the engine tomorrow, but I gotta do this first.

Pic one, I have partly figured out, the right loop is for the lighter, and light, but the top loop (brown wire that goes thru the firewall) I dunno what it is for. The left loop, I am also lost. It looks like it is for a switch to power whatever is in the top loop.

Pic two The tan wire coming thu the firewall, what is it for, and where does it plug in? Same goes for the plug hanging at the bottom of the pic with three wires.

Thanks for any help you guys can provide! You can help it all come to life tomorrow!

JB

orangeuavol · 03-09-2005, 11:07 PM

If those are the original wires, jhow66 can tell you what they are for.

BigRand · 03-09-2005, 11:27 PM

Pic#1 Plug for tach, brown wire goes to coil.

Pic#2 Brown wire plugs in fuse box for fuel guage.

Pic#2 Looks like orange and white wire for dome lights.

jhow66 · 03-10-2005, 12:23 AM

Here you go:

JBstor · 03-10-2005, 01:50 AM

Wow!

Thanks for the help guys! that was fast!

I just got back in from the shop and everything seems to be working great!

Now I just have a list of about ten things to do tomorrow, and I will try to fire it up!

Wish me luck!

JB

jhow66 · 03-10-2005, 03:21 AM

Hey JB' has the green wire got a bulb on the end? (did not notice it before) If so I have not seen that one before. (does not go to radio). You should have a red wire (for radio) that would plug where I said the "green" wire did. Sorry.
Howard

JBstor · 03-10-2005, 03:49 AM

Howard,

Yes there is a bulb on it. I figured out that it was for the lighter. It has a little cover for a bulb to illuminate the lighter socket when the lighter is out of it.

Thanks again!
JB

03-09-2005, 11:27 PM	#3
BigRand Go Vols Join Date: Dec 2004 Location: TN Posts: 30	Pic#1 Plug for tach, brown wire goes to coil. Pic#2 Brown wire plugs in fuse box for fuel guage. Pic#2 Looks like orange and white wire for dome lights. __________________ *When you have to shoot, shoot don't talk.*

03-10-2005, 12:23 AM	#4
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Here you go: Attached Images __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer

03-10-2005, 03:21 AM	#6
jhow66 Registered User Join Date: Jun 2002 Location: Knoxville Tenn. Posts: 3,058	Hey JB' has the green wire got a bulb on the end? (did not notice it before) If so I have not seen that one before. (does not go to radio). You should have a red wire (for radio) that would plug where I said the "green" wire did. Sorry. Howard __________________ 56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer Last edited by jhow66; 03-10-2005 at 03:22 AM. Reason: added something

03-09-2005, 10:50 PM	#1
JBstor Registered User Join Date: Feb 2005 Location: Winnipeg, Manitoba, Canada Posts: 66	Need some wiring help Hi all! I'm trying to button up the last of the wiring on the '70. Because I had a buddy ''helping" me take it apart, there are a few wires I cannot figure out. They weren't marked when taken apart, and the wiring diagram has not been too helpful. I have all the other wiring done, and want to fire up the engine tomorrow, but I gotta do this first. Pic one, I have partly figured out, the right loop is for the lighter, and light, but the top loop (brown wire that goes thru the firewall) I dunno what it is for. The left loop, I am also lost. It looks like it is for a switch to power whatever is in the top loop. Pic two The tan wire coming thu the firewall, what is it for, and where does it plug in? Same goes for the plug hanging at the bottom of the pic with three wires. Thanks for any help you guys can provide! You can help it all come to life tomorrow! JB Attached Images

03-09-2005, 11:07 PM	#2
orangeuavol GO VOLS! Join Date: May 2001 Location: Knoxville, TN Posts: 725	If those are the original wires, jhow66 can tell you what they are for. __________________ http://1972blazer.shutterfly.com/<= blazer build pics It's called golf because all the other four letter words were taken. It's easier to ask for forgiveness than for permission.

03-10-2005, 01:50 AM	#5
JBstor Registered User Join Date: Feb 2005 Location: Winnipeg, Manitoba, Canada Posts: 66	Wow! Thanks for the help guys! that was fast! I just got back in from the shop and everything seems to be working great! Now I just have a list of about ten things to do tomorrow, and I will try to fire it up! Wish me luck! JB

03-10-2005, 03:49 AM	#7
JBstor Registered User Join Date: Feb 2005 Location: Winnipeg, Manitoba, Canada Posts: 66	Howard, Yes there is a bulb on it. I figured out that it was for the lighter. It has a little cover for a bulb to illuminate the lighter socket when the lighter is out of it. Thanks again! JB



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