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Gas Gauge Problems

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Old 03-14-2017, 03:44 PM
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JoeS636
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Default Gas Gauge Problems

I have a 76E that I'm having issues with the gas gauge. When the tank is full, the needle goes all the way to the 3 o'clock position. I normally fill up at about half a tank on the gauge and it takes about 9 gallons. Right now the car is sitting on about 3/4 a tank (looking in the tank) and the needle is about halfway through the F.

I've gone through the Wilcox troubleshooting guide. When I test the sending unit I get 64 Ohms with it sitting at about 3/4 full. When I remove the #1 wire from the sending unit, the gauge goes a hair past the 3 o'clock position. When I ground it out the gauge goes to just a hair about E.

Is this a bad gauge, or is something else going on?
Old 03-14-2017, 09:41 PM
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78SilverCam
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I got the same problem - one of the problems I am tackling this summer.


Last edited by 78SilverCam; 03-14-2017 at 10:03 PM.
Old 03-14-2017, 10:00 PM
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0Willcox Corvette
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Originally Posted by 78SilverCam
I got the same problem - one of the problems I am tacking this summer.

https://www.youtube.com/watch?v=fF6oqpJ-G1U
You beat me to my own video.. lol

If you are 3 like the picture below shows then you are missing ohms input.



I'd also suggest you load and read this:
1968-1976 Corvette Fuel Gauge and Sending Unit Testing

Willcox
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