Gas Gauge - Impala Tech
Electrical & Wiring Troubleshooting electrical problems

 
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post #1 of 3 (permalink) Old 06-19-2013, 09:15 PM Thread Starter
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Gas Gauge

Is there a way to test the gas gauge to see if it is working properly while I have the dash out of the car? I can put power to it and make the gauge move, but it won't stay anywhere in the "E - F" range. If I need to replace it, I'd sure rather do it now while I have the dash out of the car.

Ed
66 Impala SS
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post #2 of 3 (permalink) Old 06-20-2013, 02:14 PM
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It uses full voltage dropped across a 90 Ohm rheostat to ground to measure the level of gas in the tank.

This should explain some of your problem.

http://www.chevyclassicsclub.com/the...ry-1965-newer/

Big Dave
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post #3 of 3 (permalink) Old 06-20-2013, 08:07 PM Thread Starter
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Thanks Dave. That article is a gem! An easy read, and easy to follow.

Ed
66 Impala SS
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