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Old 10-08-2004, 11:32 PM
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fuel gauge acting stupid

i just installed a home made dash in my 1969 nova, i traced all of the wires for the gauges and hooked them up to my coresponding autometer gauges and painless gauge harness, all of the gauges functions great except the fuel gauge which pegged the full side when i first turned on the key and the needle never came back to where u can get a reading off of it any ideas? ps i did check to see if the wiring was correct for the gauge and the sender is to the sender terminal, ground is to the ground terminal ect....im lost, maybe the gauge is just bad (i know it works on a potentiometer to ground, which is the fuel sender but i have no idea why its acting like its grounded out) BTW the old fuel gauge worked just fine before
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Old 10-09-2004, 01:13 AM
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It's probably not hooked up. My '69 Nova reads past "full", and it currently does not have a gas tank & the sender wire is just hanging out in space.
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Old 10-09-2004, 11:37 AM
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The sending unit in the tank needs to be grounded to the chassis or it will peg out like that.
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Old 10-10-2004, 12:46 PM
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sender

[size=3]Doc here

Your sender may be the wrong value for your new gauge if it's an after-market type.

Try about a 100 ohm 1 watt resistor to ground through the unhooked sender line, see if the gauge responds where you can read it. If so the system is correct.

Find out what value sender your new gauge requires and get that sender. (should be with gauge info sheet.)

Hope it helps!

Doc
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Old 10-11-2004, 07:02 PM
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i looked up the sender requirements and the gauge is set up to run on a 0-90 ohm (1960-1985 GM) sender which is what i ordered it for, now i think maybe i hooked the wires backwards for the pink and tan, that is if the gauge works opposite of the old one, but im not sure, thanks for the help tho
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Old 10-12-2004, 12:13 AM
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wires?

[size=3]Doc here

Reversed Them At the Gauge or the Sender?

BTW , where is Walnut Ca? By Rio Vista?

I'm in Lafayette...about 25 miles east of S.F.

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Old 10-12-2004, 07:11 PM
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well i think i may have reversed them at the gauge but the local speedo guy told me it looks like the sender went bad, so im gunna replace that asap (when i put in a fuel cell i guess) and walnut is about 20 miles south east of los angeles off of the 60 FWY
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