I bet something IS wrong inside the gas tank. Both
gauges are powered by the same voltage regulator.
I believe you can disconnect the sender unit and
replace it with a fixed resistance that should produce
a particular gauge reading, but I don't know that that
resistance is :-(
But I bet there is a 90% chance you need a new sender
anyway. One other possibility is that the electrical
part is OK, but the float is flooded and not floating
properly. You can get a new float cheaper than an
entire sender.
Either way, you have to remove the old sender, so
start driving around until the tank is mostly empty...
Doug Braun
'72 Spit
--- Grant Buss <buss3@rogers.com> wrote:
> Morning everyone
> I have a slight problem with my gas gauge. It reads
> a 1/4 tank off. When it
> shows 1/4 tank it is really 1/2 tank. My Temp gauge
> appears to be OK. I don't
> think there is anything wrong inside the tank. I
> think the voltage at the
> gauge should be 10 volts. How do you test it?
> Thanks to everyone Grant
> _______________________________________________
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