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Old 08-23-2014, 11:42 PM   #17
TBONE1964
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Join Date: Nov 2012
Location: Junction City, OR
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Re: 67-72 Chevy Truck fuel gauge diagnostics 101

Another point I would like to make on the 1967-1972 Chevy?GMC truck fuel gauge diagnostics is this:

The fuel gauge and the temp gauge do get there power from the same source. 20 gauge pink wire from the ignition switch. On the cluster connector, that is going to be the pink wire in position # 3. Thought the printed circuit board it splits and routes power to each gauge.

It will be helpful if you think you are not getting 12V to your fuel gauge to see what is happening with your temperature gauge also.
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