gauges gone wonky

jhdeval said

Okay so it appears my gas gauge just has a faulty ground. I am going to need to look at that but the temp gauge is still surging. Could it be the thermostat? How does it work and how do I know? I don't think it is the sensor as I have replaced that less then a year ago.

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I dont know how your fuel gauge could have had a faulty ground It gets 5 volts input on one post and a signal from the sender on the other post. The gauge itself isn't chassis gounded.
Those gauges having 3 posts do have the limiter housed inside and that gauge is chassis grounded by the manner in which it is mounted in the housing to providea ground path for the limiter.
Even in thiese gaugss the 5 volt circuit is not and should not be chassis grounded.

In the case of the original thread starter, email me. I can talk you through a few tests and find then fix the fault.
As for others posting their issues here, that will only cause confusion for everyone because they aren't all the same.
Better o start your own thread or just contact me diredtly.