Re: {FORGED?} Gas Gauge Question

[farna@xxxxxxx]

Not with a multimeter -- not directly anyway. Take a look at the electrical section of the TSM (http://www.tocmp.com/manuals/AMC/1973/Service/Part1/Chapter3html/browser.htm; go to page 3-30). There you will find the gauge calibration table. All AMC gauges from about 1956-76 use close to the same calibrations. The minimum/maximum for the fuel gauge is 9-73 ohms as well -- note that the gauge will usually fall below the empty and above the full mark. 

Get a 100 ohm variable resistor from Radio Shack. Use your multimeter to dial in the desired resistance. Connect that in place of the line to the sending unit. Alternately, use resistors to make up the four specified values. You'll have to have a 5V power source for the voltage input. Four AA, C or D cells is 6V, but that's close enough. You can get a four cell battery holder while at RS too. If you're testing the temp gauge for a Hornet/Gremlin/Concord/Spirit it has the 5V regulator built in. Run 12V to it. 

On September 26, 2005 Mr. AMC wrote:

> Is their any way to check a gas gauge with a multimeter with the gauge out of the car with it not hooked up to the car? I have a spare Gremlin gauge cluster and if the gauge is no good in my Hornet I may be able to swap out the gauges. But I don't want to swap out anything unless I am sure.
> "Doc"
> 
> 
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