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75 V8LUV
 Post subject: Gas guage not working
PostPosted: Sat Mar 24, 2007 8:02 pm 
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LUVTruck.com Lifer

Joined: Sun Jun 12, 2005 10:42 am
Posts: 684
My gas guage worked fine when I got the truck and now it doesnt work at all. I tried looking at the schematic on the site for the series 4 trucks but im stupid and it all looks like Chinese arithmatic to me can someone explain the wiring for the gas guage in a simple way.
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tj white
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PostPosted: Mon Mar 26, 2007 8:10 am 
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Joined: Wed Apr 12, 2006 2:24 pm
Posts: 2143
Location: Hermiston,Oregon
Use a test light and pull the wire off the sender and you should have voltage at the wire (blinking) if you do have voltage then your sender is bad , when you do this the gauge will read full and if you don't have a test light then ground the wire and your gauge will read full ,if you don't have voltage then you need to check at the gauge for voltage. If you have voltage to one side and not the other then your gauge is faulty,if there is no voltage then go to the power source.

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1978 pro street step/side 455Buick, 4sp,4.11s, 31/18.5s
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75 V8LUV
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PostPosted: Mon Mar 26, 2007 8:34 am 
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LUVTruck.com Lifer

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Posts: 684
You wouldnt happen to know what color(s) the wire to the gauge/sending unit is would you?
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tj white
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PostPosted: Tue Mar 27, 2007 1:19 pm 
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Nope

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1978 pro street step/side 455Buick, 4sp,4.11s, 31/18.5s
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