Quote:
Originally Posted by Wilson2608
... there were no electrical wires connected to the thermo so it must operate without any input from sensors.
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Yes, the thermostat is a purely mechanical device with no electrical connections.
Quote:
Originally Posted by Wilson2608
As for the 5v ref, all my other gauges are working properly(oil voltage time etc). Could a short in the 5v still cause this?
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Any sensors/gauges that do not use the 5V ref would not be affected (oil pressure is a switch, voltage is referenced to ground, and the clock in the triple-gauge is a 12V stand-alone unit with internal time base). FSM will tell you which circuits use the 5V ref, but you may have to dig for it.
In any case, I still think the place to start looking is the fuel sensors wiring. Most of the symptoms you report point to that and nothing points away from it.