67-72 Chevy Truck fuel gauge diagnostics 101 - The 1947 - Present Chevrolet & GMC Truck Message Board Network



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67-72 Chevy Truck fuel gauge diagnostics 101

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04-18-2020, 02:36 PM

#27

bamabronc

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Join Date: Aug 2010

Location: SE Alabama

Posts: 9

Re: 67-72 Chevy Truck fuel gauge diagnostics 101

Quote:

Originally Posted by bamabronc

More info. With the gauge outside of the cluster and hooked up, it works. I’m thinking it must be something with how I have the resistor on or the wiring coming into the cluster. Does anyone know what the readings should be on each wire at the plug?

Also, feed wire at plug is 90 ohm, but once plugged in it goes to 36 ohms.

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