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#1 |
Registered User
Join Date: Oct 2011
Location: Bloomington Indiana
Posts: 322
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need help with gas guage please
I have a 65 GMC . Could someone tell me what color the wire is that supplies the power to the gauges. and also what color is the wire for the gas guage sending unit. It appears some of the wires have been cut where the plug is at the back of the dash.
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#2 |
Senior Member
![]() Join Date: Jan 2011
Location: Hayes Va
Posts: 4,569
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Re: need help with gas guage please
This thread should help. http://67-72chevytrucks.com/vboard/s...d.php?t=378484 Also if you go through the FAQ section there are other threads on wiring.
Jimmy
__________________
60 to 66 Chevy and GMC window decals http://67-72chevytrucks.com/vboard/s...d.php?t=661131 Good friends, good food and a hotrod what else do you need? 1966 BBW long fleet Daily driver 1965 BBW short fleet Sold and going to a good home 1965 Suburban 2003 3500 Duramax 2005 Ultra Classic |
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#3 |
Registered User
Join Date: Oct 2011
Location: Bloomington Indiana
Posts: 322
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Re: need help with gas guage please
Thanks for the reply. What I have been struggling with is trying to figure out the wires that go to the connecter that plugs in the back of the dash. I had to rewire the truck and I don, really understand the printed circuit. Wish it was just the old fashion guage
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#4 | |
Registered User
Join Date: Nov 2009
Location: Sherman, ME
Posts: 2,359
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Re: need help with gas guage please
Chevy trucks used a pink wire for the +12V switched ignition feed to the gauges and a tan wire for the fuel gauge sending unit. Wire colors for your GMC might be different though ... I don't have a GMC specific wiring diagram handy to check.
Here is a good write-up explaining how to test the fuel gauge --> http://6066gmcguy.com/Electrical-02.html And this paragraph in particular from that site might be helpful to you concerning the connector on the back of the dash: Quote:
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