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Erratic Fuel Gauge
#1
Just can't stay away
Just can't stay away

Donald Booth
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The fuel gauge on my 50 Deluxe is pretty erratic, ranging from the needle bouncing back and forth to just sitting on E and not moving at all. Since I recently had the sender replaced, I believe the problem must be with the original factory fuel gauge. I'm considering installing an auxiliary gauge, rather than tempting fate by trying to work behind the dash on the original gauge. I'm wondering if a 12 volt gauge will work with a 6 volt sender. I've looked online and found opinions that say it will work because the sender works on the changing resistance in the sender and that the voltage doesn't matter. What do you think? Also, is the resistance range of the factory sender 0-90 ohms? Thanks

Posted on: 2020/11/29 17:39
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Re: Erratic Fuel Gauge
#2
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JD in KC
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That sounds a lot like a loose connection.

Posted on: 2020/11/29 17:56
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Re: Erratic Fuel Gauge
#3
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Donald Booth
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JD, thanks for your response. The last time I fiddled back behind the dash was during the installation of an original radio I harvested from a junker. I got the radio installed, but created a short in the process that took a great deal of additional fiddling to sort out. After seeing/experiencing all of the dried out insulation back there - exposing a fair amount of bare wire - I avoid getting my hands back there if at all possible. Hence my willingness to install a non-original auxiliary gauge. That being said, I'll muster my courage and take a peek. What type of connection am I looking for at the back of the fuel gauge - a wire connector on a stud with a nut or something else? BTW, I take it you're from KC. Same here.

Posted on: 2020/11/29 19:48
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Re: Erratic Fuel Gauge
#4
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JD in KC
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Yes, it's a nut and stud arrangement. You mentioned 'resistance' in connection with the sender. Are you are aware that the 22nd and 23rd Series Packards didn't use a standard resistance based sender/gauge? They use a bi-metal heater based on/off system. Hopefully you installed a compatible sender.

I live north of the river.

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Posted on: 11/30 5:39
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