| Fuel gauge not working, need help [message #225531] |
Sun, 13 October 2013 20:36  |
lw8000
Messages: 201
Registered: July 2012
Location: S.E. Michigan
Karma:
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Senior Member |
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Hello all,
We are having a difficult time trying to fix the fuel gauge on our 77 Kingsley, and need some help and advice. The problem we are facing is the fuel gauge stays on E pretty much all of the time, no matter which tank we have the switch set to (main or aux). Once in a while, the gauge will work but not for long.
After reading here about how to check the sending units, I removed the plug from the back of the fuel selector switch, and with the ignition key on checked and we have 90 ohms from one sending unit, and 25 ohms from the other sending unit. I also tested the switch itself, and it is working properly. Next, I checked continuity of two wires (one is pink and one is gray) that go from the switch to the plug on the back of the gauge itself, and they show as good. Next, I tried to check resistance of those same two wires on the gauge plug, and seemed to get a zero reading on both wires. This is where I'm stumped. I am certain that both sending units and the switch are fine, but I'm assuming that I should be able to check resistance at that plug. Is this assumption correct? Is there a better way to check the connection at the gauge or check the gauge itself?
We have also checked that the ground that connects to the back of the gauges is good.
Any help would be greatly appreciated!!! We are close and it will be nice knowing how much fuel we have in the tanks... 
Thank you !
--
Chris
Chris S. -
77 Kingsley, 3.70 FD, mostly OEM -
S.E. Michigan
[Updated on: Sun, 13 October 2013 20:41] Report message to a moderator |
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