zeusdude Posted May 16, 2014 Share Posted May 16, 2014 Haven't been here in a while but was wondering if someone could help. 1970 Monte Carlo...idiot dash....was wondering if there was a way to wire the fuel gauge to work because the printed circuit is fried...and i don't have the time right now to replace it. Any suggestions. I have the connector unplugged because it keeps blowing fuses..just want a fuel gauge for now. Thanks Mike Quote Link to comment Share on other sites More sharing options...
Sam (Bones) Posted May 16, 2014 Share Posted May 16, 2014 you will have to take the dash pad off you should be able to access the back of the cluster, the fuel gauge should have 2 nuts thru the printed circuit, and you can hook a ground and the wire from the sending unit to them but while you have the dash pad off you might find your issue Quote Link to comment Share on other sites More sharing options...
overdrive Posted May 16, 2014 Share Posted May 16, 2014 You'll need a fused, positive 12 volt that is switched by the ignition switch to connect to the fuel gauge. It's the gauge housing that must be grounded. Dan Quote Link to comment Share on other sites More sharing options...
zeusdude Posted May 16, 2014 Author Share Posted May 16, 2014 So..looking down at the back of the gauge from inside the car...which terminal is ground and which is the positive? I would like to splice into the wires from the connector that plugs into the printed circuit as it is disconnected right now. I did find an ignition hot..off the top of my head I do not remember the color...but when I hooked it to the guage...it just pegged it. The guage was working before the printed circuit shorted out. Is one of these also the sending unit? Quote Link to comment Share on other sites More sharing options...
Sam (Bones) Posted May 17, 2014 Share Posted May 17, 2014 if I remember correctly... one side is 12v and the other goes to your sending unit, the sending unit controls the ground by varying the resistance Quote Link to comment Share on other sites More sharing options...
overdrive Posted May 17, 2014 Share Posted May 17, 2014 For a typical fuel gauge circuit, click on the link. Dan Quote Link to comment Share on other sites More sharing options...
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