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Old 01-14-2010, 06:00 PM
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1949 Chevy truck gas tank sending unit

I converted from 6 to 12 volt. I picked up a voltage reducer for the gauges...Does the gas tank sending unit care what the voltage is?

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Old 01-14-2010, 11:30 PM
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Since the gauges are stepped down on voltage, the sender will function as it did.

Your fuel gauge is nothing more than an ohm meter. The sender just varies the DC resistance to ground relative to fuel level.
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Old 01-15-2010, 09:04 AM
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Thanks!

That's exactly the info I was looking for. I didn't want to get the truck back together and discover that I needed to replace the sending unit. Great info, thanks a bunch.
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