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#1 |
GM Addicted
Join Date: Jan 2009
Location: Visalia, Ca
Posts: 2,294
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fuel gauge
So im working on another truck and the fuel gauge isnt working shows way past full. The truck has a fuel cell and was wondering how do i test the sending unit for correct ohm readings. Also i noticed in some wiring diagrams that the fuel guage goes from pin 7 to 18 so i took a look at a few clusters i have and they deffinently do. 7 to 18 has a jumper wire between the two. pin 7 has another tan wire going out past the cluster. Now i want to just hook up a new wire on that end and run it back to the tank would that work?
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![]() ![]() 73 GMC, 54 Caddy, 2010 Silverado, 68 C10 RIP DAd My 73 GMC Truck Build Pic 2010 Silverado 4/6 on 24s IG:MacsGarage |
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#2 |
GM Addicted
Join Date: Jan 2009
Location: Visalia, Ca
Posts: 2,294
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Re: fuel gauge
mod please move this to electrical thanks
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![]() ![]() 73 GMC, 54 Caddy, 2010 Silverado, 68 C10 RIP DAd My 73 GMC Truck Build Pic 2010 Silverado 4/6 on 24s IG:MacsGarage |
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#3 |
78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
Posts: 7,901
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Re: fuel gauge
7 is alt light if it's idiot lights, 18 is big fuel gauge no tach
with tach it makes the 7 the fuel small gauge my 78 with idiots
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
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#4 |
GM Addicted
Join Date: Jan 2009
Location: Visalia, Ca
Posts: 2,294
|
Re: fuel gauge
Yeah this one has the big tach. Fuel gauge goes from 7 to pin 18
__________________
![]() ![]() 73 GMC, 54 Caddy, 2010 Silverado, 68 C10 RIP DAd My 73 GMC Truck Build Pic 2010 Silverado 4/6 on 24s IG:MacsGarage |
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